The vitamin D story exudes teaching points: It offers a master class in critical appraisal, connecting the concepts of biologic plausibility, flawed surrogate markers, confounded observational studies, and slews of randomized controlled trials (RCTs) showing no benefits on health outcomes.

Yet despite the utter lack of benefit seen in trials, the hype continues. And the pandemic has only enhanced this hype as an onslaught of papers have reported the association of low vitamin D levels and COVID-19 disease.

My questions are simple: Why doesn’t the evidence persuade people? How many nonsignificant trials do we need before researchers stop studying vitamin D, doctors stop (routinely) measuring levels, and patients stop wasting money on the unhelpful supplement? What are the implications for this lack of persuasion?

Before exploring these questions, I want to set out that symptomatic vitamin deficiencies of any sort ought to be corrected. 
 

Biologic plausibility and the pull of observational studies

It has long been known that vitamin D is crucial for bone health and that it can be produced in the skin with sun exposure. In the last decade, however, experts note that nearly every tissue and cell in our body has a vitamin D receptor. It then follows that if this many cells in the body can activate vitamin D, it must be vital for cardiovascular health, immune function, cancer prevention: basically, everything health related.

Oodles of observational studies have found that low serum levels of vitamin D correlate with higher mortality from all causes, cancer, cardiovascular disease, and now even COVID-19. Yet no matter the amount of statistical adjustment in these studies, we cannot know whether these associations are due to true causality.

The major issue is confounding: That is, people with low vitamin D levels have other conditions or diseases that lead to higher rates of ill health. Consider a patient with obesity, arthritis, and cognitive decline; this person is unlikely to do much exercise in the sun and may have low vitamin D levels. The low vitamin D level is simply a marker of overall poor health.
 

The randomized controlled trials tell a clear story

There are hundreds of vitamin D RCTs. The results simplify into one sentence: Vitamin D supplements do not improve health outcomes.

Here is a short summary of some recent studies.

VITAL, a massive (N > 25,000) RCT with 5 years of follow-up, compared vitamin D supplements to placebo and found no differences in the primary endpoints of cancer or cardiac events. Rates of death from any cause were nearly identical. Crucially, in subgroup analyses, the effects did not vary according to vitamin D levels at baseline.

The D-Health investigators randomly assigned more than 21,000 adults to vitamin D or placebo and after 5.7 years of follow-up reported no differences in the primary endpoint of overall mortality. There also were no differences in cardiovascular disease mortality.

Then you have the Mendelian randomized studies, which some have called nature’s RCT. These studies take advantage of the fact that some people are born with gene variations that predispose to low vitamin D levels. More than 60 Mendelian randomization studies have evaluated the consequences of lifelong genetically lowered vitamin D levels on various outcomes; most of these have found null effects.

Then there are the meta-analyses and systematic reviews. I loved the conclusion of this review of systematic reviews from the BMJ (emphasis mine):

“Despite a few hundred systematic reviews and meta-analyses, highly convincing evidence of a clear role of vitamin D does not exist for any outcome, but associations with a selection of outcomes are probable.”

 

The failure to persuade

My original plan was to emphasize the power of the RCT. Despite strong associations of low vitamin D levels with poor outcomes, the trials show no benefit to treatment. This strongly suggests (or nearly proves) that low vitamin D levels are akin to premature ventricular complexes after myocardial infarction: a marker for risk but not a target for therapy.

But I now see the more important issue as why scientists, funders, clinicians, and patients are not persuaded by clear evidence. Every day in clinic I see patients on vitamin D supplements; the journals keep publishing vitamin D studies. The proponents of vitamin D remain positive. And lately there is outsized attention and hope that vitamin D will mitigate SARS-CoV2 infection – based only on observational data.

You might argue against this point by saying vitamin D is natural and relatively innocuous, so who cares?

I offer three rebuttals to that point: Opportunity costs, distraction, and the insidious danger of poor critical appraisal skills. If you are burning money on vitamin D research, there is less available to study other important issues. If a patient is distracted by low vitamin D levels, she may pay less attention to her high body mass index or hypertension. And on the matter of critical appraisal, trust in medicine requires clinicians to be competent in critical appraisal. And these days, what could be more important than trust in medical professionals?

One major reason for the failure of persuasion of evidence is spin – or language that distracts from the primary endpoint. Here are two (of many) examples:

A meta-analysis of 50 vitamin D trials set out to study mortality. The authors found no significant difference in that primary endpoint. But the second sentence in their conclusion was that vitamin D supplements reduced the risk for cancer deaths by 15%. That’s a secondary endpoint in a study with nonsignificance in the primary endpoint. That is spin. This meta-analysis was completed before the Australian D-Health trial found that cancer deaths were 15% higher in the vitamin D arm, a difference that did not reach statistical significance.

The following example is worse: The authors of the VITAL trial, which found that vitamin D supplements had no effect on the primary endpoint of invasive cancer or cardiovascular disease, published a secondary analysis of the trial looking at a different endpoint: A composite incidence of metastatic and fatal invasive total cancer. They reported a 0.4% lower rate for the vitamin D group, a difference that barely made statistical significance at a P value of .04. 

But everyone knows the dangers of reanalyzing data with a new endpoint after you have seen the data. What’s more, even if this were a reasonable post hoc analysis, the results are neither clinically meaningful nor statistically robust.  Yet the fatally flawed paper has been viewed 60,000 times and picked up by 48 news outlets.

Another way to distract from nonsignificant primary outcomes is to nitpick the trials. The vitamin D dose wasn’t high enough, for instance. This might persuade me if there were one or two vitamin D trials, but there are hundreds of trials and meta-analyses, and their results are consistently null.
 

Conclusion: No, it is not hopeless

A nihilist would argue that fighting spin is futile. They would say you can’t fight incentives and business models. The incentive structure to publish is strong, and the journals and media know vitamin D studies garner attention – which is their currency.

I am not a nihilist and believe strongly that we must continue to teach critical appraisal and numerical literacy.

In fact, I would speculate that decades of poor critical appraisal by the medical profession have fostered outsized hope and created erroneous norms.

Imagine a counter-factual world in which clinicians have taught society that the human body is unlike an engine that can be repaired by fixing one part (i.e., the vitamin D level), that magic bullets (insulin) are rare, that most treatments fail, or that you can’t rely on association studies to prove efficacy.

In this world, people would be immune from spin and hype.

The norm would be that pills, supplements, and procedures are not what delivers good health. What delivers health is an amalgam of good luck, healthy habits, and lots of time spent outside playing in the sun.
 

Dr. Mandrola practices cardiac electrophysiology in Louisville, Ky., and is a writer and podcaster for Medscape. He espouses a conservative approach to medical practice. He participates in clinical research and writes often about the state of medical evidence. He has disclosed no relevant financial relationships. A version of this article first appeared on Medscape.com.

The vitamin D story exudes teaching points: It offers a master class in critical appraisal, connecting the concepts of biologic plausibility, flawed surrogate markers, confounded observational studies, and slews of randomized controlled trials (RCTs) showing no benefits on health outcomes.

Yet despite the utter lack of benefit seen in trials, the hype continues. And the pandemic has only enhanced this hype as an onslaught of papers have reported the association of low vitamin D levels and COVID-19 disease.

My questions are simple: Why doesn’t the evidence persuade people? How many nonsignificant trials do we need before researchers stop studying vitamin D, doctors stop (routinely) measuring levels, and patients stop wasting money on the unhelpful supplement? What are the implications for this lack of persuasion?

Before exploring these questions, I want to set out that symptomatic vitamin deficiencies of any sort ought to be corrected. 
 

Biologic plausibility and the pull of observational studies

It has long been known that vitamin D is crucial for bone health and that it can be produced in the skin with sun exposure. In the last decade, however, experts note that nearly every tissue and cell in our body has a vitamin D receptor. It then follows that if this many cells in the body can activate vitamin D, it must be vital for cardiovascular health, immune function, cancer prevention: basically, everything health related.

Oodles of observational studies have found that low serum levels of vitamin D correlate with higher mortality from all causes, cancer, cardiovascular disease, and now even COVID-19. Yet no matter the amount of statistical adjustment in these studies, we cannot know whether these associations are due to true causality.

The major issue is confounding: That is, people with low vitamin D levels have other conditions or diseases that lead to higher rates of ill health. Consider a patient with obesity, arthritis, and cognitive decline; this person is unlikely to do much exercise in the sun and may have low vitamin D levels. The low vitamin D level is simply a marker of overall poor health.
 

The randomized controlled trials tell a clear story

There are hundreds of vitamin D RCTs. The results simplify into one sentence: Vitamin D supplements do not improve health outcomes.

Here is a short summary of some recent studies.

VITAL, a massive (N > 25,000) RCT with 5 years of follow-up, compared vitamin D supplements to placebo and found no differences in the primary endpoints of cancer or cardiac events. Rates of death from any cause were nearly identical. Crucially, in subgroup analyses, the effects did not vary according to vitamin D levels at baseline.

The D-Health investigators randomly assigned more than 21,000 adults to vitamin D or placebo and after 5.7 years of follow-up reported no differences in the primary endpoint of overall mortality. There also were no differences in cardiovascular disease mortality.

Then you have the Mendelian randomized studies, which some have called nature’s RCT. These studies take advantage of the fact that some people are born with gene variations that predispose to low vitamin D levels. More than 60 Mendelian randomization studies have evaluated the consequences of lifelong genetically lowered vitamin D levels on various outcomes; most of these have found null effects.

Then there are the meta-analyses and systematic reviews. I loved the conclusion of this review of systematic reviews from the BMJ (emphasis mine):

“Despite a few hundred systematic reviews and meta-analyses, highly convincing evidence of a clear role of vitamin D does not exist for any outcome, but associations with a selection of outcomes are probable.”

 

The failure to persuade

My original plan was to emphasize the power of the RCT. Despite strong associations of low vitamin D levels with poor outcomes, the trials show no benefit to treatment. This strongly suggests (or nearly proves) that low vitamin D levels are akin to premature ventricular complexes after myocardial infarction: a marker for risk but not a target for therapy.

But I now see the more important issue as why scientists, funders, clinicians, and patients are not persuaded by clear evidence. Every day in clinic I see patients on vitamin D supplements; the journals keep publishing vitamin D studies. The proponents of vitamin D remain positive. And lately there is outsized attention and hope that vitamin D will mitigate SARS-CoV2 infection – based only on observational data.

You might argue against this point by saying vitamin D is natural and relatively innocuous, so who cares?

I offer three rebuttals to that point: Opportunity costs, distraction, and the insidious danger of poor critical appraisal skills. If you are burning money on vitamin D research, there is less available to study other important issues. If a patient is distracted by low vitamin D levels, she may pay less attention to her high body mass index or hypertension. And on the matter of critical appraisal, trust in medicine requires clinicians to be competent in critical appraisal. And these days, what could be more important than trust in medical professionals?

One major reason for the failure of persuasion of evidence is spin – or language that distracts from the primary endpoint. Here are two (of many) examples:

A meta-analysis of 50 vitamin D trials set out to study mortality. The authors found no significant difference in that primary endpoint. But the second sentence in their conclusion was that vitamin D supplements reduced the risk for cancer deaths by 15%. That’s a secondary endpoint in a study with nonsignificance in the primary endpoint. That is spin. This meta-analysis was completed before the Australian D-Health trial found that cancer deaths were 15% higher in the vitamin D arm, a difference that did not reach statistical significance.

The following example is worse: The authors of the VITAL trial, which found that vitamin D supplements had no effect on the primary endpoint of invasive cancer or cardiovascular disease, published a secondary analysis of the trial looking at a different endpoint: A composite incidence of metastatic and fatal invasive total cancer. They reported a 0.4% lower rate for the vitamin D group, a difference that barely made statistical significance at a P value of .04. 

But everyone knows the dangers of reanalyzing data with a new endpoint after you have seen the data. What’s more, even if this were a reasonable post hoc analysis, the results are neither clinically meaningful nor statistically robust.  Yet the fatally flawed paper has been viewed 60,000 times and picked up by 48 news outlets.

Another way to distract from nonsignificant primary outcomes is to nitpick the trials. The vitamin D dose wasn’t high enough, for instance. This might persuade me if there were one or two vitamin D trials, but there are hundreds of trials and meta-analyses, and their results are consistently null.
 

Conclusion: No, it is not hopeless

A nihilist would argue that fighting spin is futile. They would say you can’t fight incentives and business models. The incentive structure to publish is strong, and the journals and media know vitamin D studies garner attention – which is their currency.

I am not a nihilist and believe strongly that we must continue to teach critical appraisal and numerical literacy.

In fact, I would speculate that decades of poor critical appraisal by the medical profession have fostered outsized hope and created erroneous norms.

Imagine a counter-factual world in which clinicians have taught society that the human body is unlike an engine that can be repaired by fixing one part (i.e., the vitamin D level), that magic bullets (insulin) are rare, that most treatments fail, or that you can’t rely on association studies to prove efficacy.

In this world, people would be immune from spin and hype.

The norm would be that pills, supplements, and procedures are not what delivers good health. What delivers health is an amalgam of good luck, healthy habits, and lots of time spent outside playing in the sun.
 

Dr. Mandrola practices cardiac electrophysiology in Louisville, Ky., and is a writer and podcaster for Medscape. He espouses a conservative approach to medical practice. He participates in clinical research and writes often about the state of medical evidence. He has disclosed no relevant financial relationships. A version of this article first appeared on Medscape.com.

The vitamin D story exudes teaching points: It offers a master class in critical appraisal, connecting the concepts of biologic plausibility, flawed surrogate markers, confounded observational studies, and slews of randomized controlled trials (RCTs) showing no benefits on health outcomes.

Yet despite the utter lack of benefit seen in trials, the hype continues. And the pandemic has only enhanced this hype as an onslaught of papers have reported the association of low vitamin D levels and COVID-19 disease.

My questions are simple: Why doesn’t the evidence persuade people? How many nonsignificant trials do we need before researchers stop studying vitamin D, doctors stop (routinely) measuring levels, and patients stop wasting money on the unhelpful supplement? What are the implications for this lack of persuasion?

Before exploring these questions, I want to set out that symptomatic vitamin deficiencies of any sort ought to be corrected. 
 

Biologic plausibility and the pull of observational studies

It has long been known that vitamin D is crucial for bone health and that it can be produced in the skin with sun exposure. In the last decade, however, experts note that nearly every tissue and cell in our body has a vitamin D receptor. It then follows that if this many cells in the body can activate vitamin D, it must be vital for cardiovascular health, immune function, cancer prevention: basically, everything health related.

Oodles of observational studies have found that low serum levels of vitamin D correlate with higher mortality from all causes, cancer, cardiovascular disease, and now even COVID-19. Yet no matter the amount of statistical adjustment in these studies, we cannot know whether these associations are due to true causality.

The major issue is confounding: That is, people with low vitamin D levels have other conditions or diseases that lead to higher rates of ill health. Consider a patient with obesity, arthritis, and cognitive decline; this person is unlikely to do much exercise in the sun and may have low vitamin D levels. The low vitamin D level is simply a marker of overall poor health.
 

The randomized controlled trials tell a clear story

There are hundreds of vitamin D RCTs. The results simplify into one sentence: Vitamin D supplements do not improve health outcomes.

Here is a short summary of some recent studies.

VITAL, a massive (N > 25,000) RCT with 5 years of follow-up, compared vitamin D supplements to placebo and found no differences in the primary endpoints of cancer or cardiac events. Rates of death from any cause were nearly identical. Crucially, in subgroup analyses, the effects did not vary according to vitamin D levels at baseline.

The D-Health investigators randomly assigned more than 21,000 adults to vitamin D or placebo and after 5.7 years of follow-up reported no differences in the primary endpoint of overall mortality. There also were no differences in cardiovascular disease mortality.

Then you have the Mendelian randomized studies, which some have called nature’s RCT. These studies take advantage of the fact that some people are born with gene variations that predispose to low vitamin D levels. More than 60 Mendelian randomization studies have evaluated the consequences of lifelong genetically lowered vitamin D levels on various outcomes; most of these have found null effects.

Then there are the meta-analyses and systematic reviews. I loved the conclusion of this review of systematic reviews from the BMJ (emphasis mine):

“Despite a few hundred systematic reviews and meta-analyses, highly convincing evidence of a clear role of vitamin D does not exist for any outcome, but associations with a selection of outcomes are probable.”

 

The failure to persuade

My original plan was to emphasize the power of the RCT. Despite strong associations of low vitamin D levels with poor outcomes, the trials show no benefit to treatment. This strongly suggests (or nearly proves) that low vitamin D levels are akin to premature ventricular complexes after myocardial infarction: a marker for risk but not a target for therapy.

But I now see the more important issue as why scientists, funders, clinicians, and patients are not persuaded by clear evidence. Every day in clinic I see patients on vitamin D supplements; the journals keep publishing vitamin D studies. The proponents of vitamin D remain positive. And lately there is outsized attention and hope that vitamin D will mitigate SARS-CoV2 infection – based only on observational data.

You might argue against this point by saying vitamin D is natural and relatively innocuous, so who cares?

I offer three rebuttals to that point: Opportunity costs, distraction, and the insidious danger of poor critical appraisal skills. If you are burning money on vitamin D research, there is less available to study other important issues. If a patient is distracted by low vitamin D levels, she may pay less attention to her high body mass index or hypertension. And on the matter of critical appraisal, trust in medicine requires clinicians to be competent in critical appraisal. And these days, what could be more important than trust in medical professionals?

One major reason for the failure of persuasion of evidence is spin – or language that distracts from the primary endpoint. Here are two (of many) examples:

A meta-analysis of 50 vitamin D trials set out to study mortality. The authors found no significant difference in that primary endpoint. But the second sentence in their conclusion was that vitamin D supplements reduced the risk for cancer deaths by 15%. That’s a secondary endpoint in a study with nonsignificance in the primary endpoint. That is spin. This meta-analysis was completed before the Australian D-Health trial found that cancer deaths were 15% higher in the vitamin D arm, a difference that did not reach statistical significance.

The following example is worse: The authors of the VITAL trial, which found that vitamin D supplements had no effect on the primary endpoint of invasive cancer or cardiovascular disease, published a secondary analysis of the trial looking at a different endpoint: A composite incidence of metastatic and fatal invasive total cancer. They reported a 0.4% lower rate for the vitamin D group, a difference that barely made statistical significance at a P value of .04. 

But everyone knows the dangers of reanalyzing data with a new endpoint after you have seen the data. What’s more, even if this were a reasonable post hoc analysis, the results are neither clinically meaningful nor statistically robust.  Yet the fatally flawed paper has been viewed 60,000 times and picked up by 48 news outlets.

Another way to distract from nonsignificant primary outcomes is to nitpick the trials. The vitamin D dose wasn’t high enough, for instance. This might persuade me if there were one or two vitamin D trials, but there are hundreds of trials and meta-analyses, and their results are consistently null.
 

Conclusion: No, it is not hopeless

A nihilist would argue that fighting spin is futile. They would say you can’t fight incentives and business models. The incentive structure to publish is strong, and the journals and media know vitamin D studies garner attention – which is their currency.

I am not a nihilist and believe strongly that we must continue to teach critical appraisal and numerical literacy.

In fact, I would speculate that decades of poor critical appraisal by the medical profession have fostered outsized hope and created erroneous norms.

Imagine a counter-factual world in which clinicians have taught society that the human body is unlike an engine that can be repaired by fixing one part (i.e., the vitamin D level), that magic bullets (insulin) are rare, that most treatments fail, or that you can’t rely on association studies to prove efficacy.

In this world, people would be immune from spin and hype.

The norm would be that pills, supplements, and procedures are not what delivers good health. What delivers health is an amalgam of good luck, healthy habits, and lots of time spent outside playing in the sun.
 

Dr. Mandrola practices cardiac electrophysiology in Louisville, Ky., and is a writer and podcaster for Medscape. He espouses a conservative approach to medical practice. He participates in clinical research and writes often about the state of medical evidence. He has disclosed no relevant financial relationships. A version of this article first appeared on Medscape.com.

The CDC will soon update its COVID-19 guidance – including masking recommendations – as cases continue to drop, CDC Director Rochelle P. Walensky, MD, said on Feb. 16.

“As we consider future metrics, which will be updated soon, we recognize the importance of not just cases … but critically, medically severe disease that leads to hospitalizations,” Dr. Walensky said at a White House news briefing. “We must consider hospital capacity as an additional important barometer.”

She later added, “We are looking at an overview of much of our guidance, and masking in all settings will be a part of that.”

Coronavirus cases continue to drop nationwide. This week’s 7-day daily average of cases is 147,000, a decrease of 40%. Hospitalizations have dropped 28% to 9,500, and daily deaths are 2,200, a decrease of 9%.

“Omicron cases are declining, and we are all cautiously optimistic about the trajectory we’re on,” Dr. Walensky said. “Things are moving in the right direction, but we want to remain vigilant to do all we can so this trajectory continues.”

Dr. Walensky said public masking remains especially important if someone is symptomatic or not feeling well, or if there has been a COVID-19 exposure. Those who are within 10 days of being diagnosed with the virus should also remain masked in public.

“We all share the same goal: to get to a point where COVID-19 is no longer disrupting our daily lives. A time when it won’t be a constant crisis,” Dr. Walensky said. “Moving from this pandemic will be a process led by science and epidemiological trends, and one that relies on the powerful tools we already have.”
 

A version of this article first appeared on WebMD.com.

The CDC will soon update its COVID-19 guidance – including masking recommendations – as cases continue to drop, CDC Director Rochelle P. Walensky, MD, said on Feb. 16.

“As we consider future metrics, which will be updated soon, we recognize the importance of not just cases … but critically, medically severe disease that leads to hospitalizations,” Dr. Walensky said at a White House news briefing. “We must consider hospital capacity as an additional important barometer.”

She later added, “We are looking at an overview of much of our guidance, and masking in all settings will be a part of that.”

Coronavirus cases continue to drop nationwide. This week’s 7-day daily average of cases is 147,000, a decrease of 40%. Hospitalizations have dropped 28% to 9,500, and daily deaths are 2,200, a decrease of 9%.

“Omicron cases are declining, and we are all cautiously optimistic about the trajectory we’re on,” Dr. Walensky said. “Things are moving in the right direction, but we want to remain vigilant to do all we can so this trajectory continues.”

Dr. Walensky said public masking remains especially important if someone is symptomatic or not feeling well, or if there has been a COVID-19 exposure. Those who are within 10 days of being diagnosed with the virus should also remain masked in public.

“We all share the same goal: to get to a point where COVID-19 is no longer disrupting our daily lives. A time when it won’t be a constant crisis,” Dr. Walensky said. “Moving from this pandemic will be a process led by science and epidemiological trends, and one that relies on the powerful tools we already have.”
 

A version of this article first appeared on WebMD.com.

The CDC will soon update its COVID-19 guidance – including masking recommendations – as cases continue to drop, CDC Director Rochelle P. Walensky, MD, said on Feb. 16.

“As we consider future metrics, which will be updated soon, we recognize the importance of not just cases … but critically, medically severe disease that leads to hospitalizations,” Dr. Walensky said at a White House news briefing. “We must consider hospital capacity as an additional important barometer.”

She later added, “We are looking at an overview of much of our guidance, and masking in all settings will be a part of that.”

Coronavirus cases continue to drop nationwide. This week’s 7-day daily average of cases is 147,000, a decrease of 40%. Hospitalizations have dropped 28% to 9,500, and daily deaths are 2,200, a decrease of 9%.

“Omicron cases are declining, and we are all cautiously optimistic about the trajectory we’re on,” Dr. Walensky said. “Things are moving in the right direction, but we want to remain vigilant to do all we can so this trajectory continues.”

Dr. Walensky said public masking remains especially important if someone is symptomatic or not feeling well, or if there has been a COVID-19 exposure. Those who are within 10 days of being diagnosed with the virus should also remain masked in public.

“We all share the same goal: to get to a point where COVID-19 is no longer disrupting our daily lives. A time when it won’t be a constant crisis,” Dr. Walensky said. “Moving from this pandemic will be a process led by science and epidemiological trends, and one that relies on the powerful tools we already have.”
 

A version of this article first appeared on WebMD.com.

Women are at higher risk of severe adverse events (AEs) from cancer therapy than men, and this is seen with chemotherapy, targeted agents, and especially with immunotherapy.

The finding comes from a review of more than 23,000 participants across 202 trials of various cancers (excluding sex-related cancers) that has been conducted over the past 40 years.

The investigators found a 34% increased risk of severe AEs among women, compared with men, climbing to a 49% higher risk with immunotherapy.

Women had a substantially greater risk of severe symptomatic AEs, including with immune checkpoint inhibitors and targeted tyrosine kinase inhibitors, and were more likely to experience severe hematologic AEs with chemotherapy and immunotherapy.

The particularly large sex differences with immunotherapy suggest “that studying AEs from these agents is a priority,” the investigators comment.

The article was published online on Feb. 4 in the Journal of Clinical Oncology.

“It has been understood that women have more toxicity from chemotherapy than men, but almost no research has aimed to understand whether that pattern held for novel treatments like immunotherapy or targeted therapies. We found similar large differences, especially for immune treatments,” said lead investigator Joseph Unger, PhD, a biostatistician and health services researcher at the Fred Hutchinson Cancer Research Center, Seattle, in an institutional press release.

A “better understanding of the nature of the underlying mechanisms could potentially lead to interventions or delivery modifications to reduce toxicity in women,” the investigators comment in their article.

Among a sea of possible explanations for the finding, there could be differences in how men and women metabolize cancer therapies or differences in how they perceive symptoms. Women may also receive relatively higher doses because of their body size or have higher adherence to treatment.

Whatever the case, as cancer treatment becomes increasingly individualized, “sex may be an important consideration,” Dr. Unger said.
 

Study details

The study involved 8,838 women and 14,458 men across the trials, which were phase 2 or 3 investigations conducted by the SWOG Cancer Research Network from 1980 to 2019. Trials including sex-related cancers were excluded. In the trials included in the review, the most common cancers were gastrointestinal and lung, followed by leukemia.

Seventy-five percent of the subjects received chemotherapy, and the rest received either targeted therapy or immunotherapy.

Two-thirds of the subjects had at least one grade 3 or higher AE; women had a 25% higher risk than men of having AEs of grade 5 or higher.

After adjusting for age, race, disease prognosis, and other factors, women were at increased risk of severe symptomatic AEs, such as nausea and pain, across all treatment lines and especially with immunotherapy, for which reports of symptomatic AEs were 66% higher.

Women also had a higher risk of symptomatic gastrointestinal AEs with all three treatments and a higher risk of sleep-related AEs with chemotherapy and immunotherapy, which “could be a function of hormonal effects interacting with cancer treatment,” the investigators said.

As for readily measurable AEs, women were at higher risk than men for objective hematologic AEs with chemotherapy, immunotherapy, and targeted therapy. There were no statistically significant sex differences in the risk of nonhematologic objective AEs.

The team notes that increased toxicity among women has been associated with improved survival, which may give AEs more time to develop. Higher rates of AEs might also signal increased delivery or efficacy of cancer treatments.

However, a previous study found that men may have a better response to immunotherapy than women. Immune checkpoint inhibitors were twice as effective as standard cancer therapies in the treatment of men with advanced solid tumors compared to their female counterparts, concluded a team that carried out a meta-analysis of 20 randomized controlled trials involving more than 11,351 patients.

The study was funded by the National Cancer Institute and others. Dr. Unger has disclosed no relevant financial relationships. Several coauthors have reported ties to a handful of companies, including Johnson & Johnson and Seattle Genetics. One is an employee of AIM Specialty Health.

A version of this article first appeared on Medscape.com.

Women are at higher risk of severe adverse events (AEs) from cancer therapy than men, and this is seen with chemotherapy, targeted agents, and especially with immunotherapy.

The finding comes from a review of more than 23,000 participants across 202 trials of various cancers (excluding sex-related cancers) that has been conducted over the past 40 years.

The investigators found a 34% increased risk of severe AEs among women, compared with men, climbing to a 49% higher risk with immunotherapy.

Women had a substantially greater risk of severe symptomatic AEs, including with immune checkpoint inhibitors and targeted tyrosine kinase inhibitors, and were more likely to experience severe hematologic AEs with chemotherapy and immunotherapy.

The particularly large sex differences with immunotherapy suggest “that studying AEs from these agents is a priority,” the investigators comment.

The article was published online on Feb. 4 in the Journal of Clinical Oncology.

“It has been understood that women have more toxicity from chemotherapy than men, but almost no research has aimed to understand whether that pattern held for novel treatments like immunotherapy or targeted therapies. We found similar large differences, especially for immune treatments,” said lead investigator Joseph Unger, PhD, a biostatistician and health services researcher at the Fred Hutchinson Cancer Research Center, Seattle, in an institutional press release.

A “better understanding of the nature of the underlying mechanisms could potentially lead to interventions or delivery modifications to reduce toxicity in women,” the investigators comment in their article.

Among a sea of possible explanations for the finding, there could be differences in how men and women metabolize cancer therapies or differences in how they perceive symptoms. Women may also receive relatively higher doses because of their body size or have higher adherence to treatment.

Whatever the case, as cancer treatment becomes increasingly individualized, “sex may be an important consideration,” Dr. Unger said.
 

Study details

The study involved 8,838 women and 14,458 men across the trials, which were phase 2 or 3 investigations conducted by the SWOG Cancer Research Network from 1980 to 2019. Trials including sex-related cancers were excluded. In the trials included in the review, the most common cancers were gastrointestinal and lung, followed by leukemia.

Seventy-five percent of the subjects received chemotherapy, and the rest received either targeted therapy or immunotherapy.

Two-thirds of the subjects had at least one grade 3 or higher AE; women had a 25% higher risk than men of having AEs of grade 5 or higher.

After adjusting for age, race, disease prognosis, and other factors, women were at increased risk of severe symptomatic AEs, such as nausea and pain, across all treatment lines and especially with immunotherapy, for which reports of symptomatic AEs were 66% higher.

Women also had a higher risk of symptomatic gastrointestinal AEs with all three treatments and a higher risk of sleep-related AEs with chemotherapy and immunotherapy, which “could be a function of hormonal effects interacting with cancer treatment,” the investigators said.

As for readily measurable AEs, women were at higher risk than men for objective hematologic AEs with chemotherapy, immunotherapy, and targeted therapy. There were no statistically significant sex differences in the risk of nonhematologic objective AEs.

The team notes that increased toxicity among women has been associated with improved survival, which may give AEs more time to develop. Higher rates of AEs might also signal increased delivery or efficacy of cancer treatments.

However, a previous study found that men may have a better response to immunotherapy than women. Immune checkpoint inhibitors were twice as effective as standard cancer therapies in the treatment of men with advanced solid tumors compared to their female counterparts, concluded a team that carried out a meta-analysis of 20 randomized controlled trials involving more than 11,351 patients.

The study was funded by the National Cancer Institute and others. Dr. Unger has disclosed no relevant financial relationships. Several coauthors have reported ties to a handful of companies, including Johnson & Johnson and Seattle Genetics. One is an employee of AIM Specialty Health.

A version of this article first appeared on Medscape.com.

Women are at higher risk of severe adverse events (AEs) from cancer therapy than men, and this is seen with chemotherapy, targeted agents, and especially with immunotherapy.

The finding comes from a review of more than 23,000 participants across 202 trials of various cancers (excluding sex-related cancers) that has been conducted over the past 40 years.

The investigators found a 34% increased risk of severe AEs among women, compared with men, climbing to a 49% higher risk with immunotherapy.

Women had a substantially greater risk of severe symptomatic AEs, including with immune checkpoint inhibitors and targeted tyrosine kinase inhibitors, and were more likely to experience severe hematologic AEs with chemotherapy and immunotherapy.

The particularly large sex differences with immunotherapy suggest “that studying AEs from these agents is a priority,” the investigators comment.

The article was published online on Feb. 4 in the Journal of Clinical Oncology.

“It has been understood that women have more toxicity from chemotherapy than men, but almost no research has aimed to understand whether that pattern held for novel treatments like immunotherapy or targeted therapies. We found similar large differences, especially for immune treatments,” said lead investigator Joseph Unger, PhD, a biostatistician and health services researcher at the Fred Hutchinson Cancer Research Center, Seattle, in an institutional press release.

A “better understanding of the nature of the underlying mechanisms could potentially lead to interventions or delivery modifications to reduce toxicity in women,” the investigators comment in their article.

Among a sea of possible explanations for the finding, there could be differences in how men and women metabolize cancer therapies or differences in how they perceive symptoms. Women may also receive relatively higher doses because of their body size or have higher adherence to treatment.

Whatever the case, as cancer treatment becomes increasingly individualized, “sex may be an important consideration,” Dr. Unger said.
 

Study details

The study involved 8,838 women and 14,458 men across the trials, which were phase 2 or 3 investigations conducted by the SWOG Cancer Research Network from 1980 to 2019. Trials including sex-related cancers were excluded. In the trials included in the review, the most common cancers were gastrointestinal and lung, followed by leukemia.

Seventy-five percent of the subjects received chemotherapy, and the rest received either targeted therapy or immunotherapy.

Two-thirds of the subjects had at least one grade 3 or higher AE; women had a 25% higher risk than men of having AEs of grade 5 or higher.

After adjusting for age, race, disease prognosis, and other factors, women were at increased risk of severe symptomatic AEs, such as nausea and pain, across all treatment lines and especially with immunotherapy, for which reports of symptomatic AEs were 66% higher.

Women also had a higher risk of symptomatic gastrointestinal AEs with all three treatments and a higher risk of sleep-related AEs with chemotherapy and immunotherapy, which “could be a function of hormonal effects interacting with cancer treatment,” the investigators said.

As for readily measurable AEs, women were at higher risk than men for objective hematologic AEs with chemotherapy, immunotherapy, and targeted therapy. There were no statistically significant sex differences in the risk of nonhematologic objective AEs.

The team notes that increased toxicity among women has been associated with improved survival, which may give AEs more time to develop. Higher rates of AEs might also signal increased delivery or efficacy of cancer treatments.

However, a previous study found that men may have a better response to immunotherapy than women. Immune checkpoint inhibitors were twice as effective as standard cancer therapies in the treatment of men with advanced solid tumors compared to their female counterparts, concluded a team that carried out a meta-analysis of 20 randomized controlled trials involving more than 11,351 patients.

The study was funded by the National Cancer Institute and others. Dr. Unger has disclosed no relevant financial relationships. Several coauthors have reported ties to a handful of companies, including Johnson & Johnson and Seattle Genetics. One is an employee of AIM Specialty Health.

A version of this article first appeared on Medscape.com.

The Centers for Medicare & Medicaid Services (CMS) will expand eligibility guidelines for lung cancer screening with low-dose computed tomography for Medicare recipients.

According to the final decision, announced February 10, CMS will lower the age for screening from 55 to 50 years up to 77 years and reduce criteria for tobacco smoking history from at least 30 pack-years to 20 pack-years. The expanded Medicare recommendation will address racial disparities associated with lung cancer, given evidence that one third of Black patients are diagnosed with lung cancer before age 55.

The updated CMS guidelines align closely with recommendations made by the U.S. Preventive Services Task Force (USPSTF) in March 2021. The USPSTF expanded its guidelines for screening to include individuals ages 50 to 80 years, as well as those who have a 20–pack-year smoking history and who currently smoke or have quit within the past 15 years.

Overall, the expanded guidelines will nearly double the number of individuals who are eligible for screening and have the potential to save significantly more lives by identifying cancers at an earlier, more treatable stage.

“Expanding coverage broadens access for lung cancer screening to at-risk populations,” said Lee Felisher, MD, CMS chief medical officer and director of the Center for Clinical Standards and Quality, in a statement. “Today’s decision not only expands access to quality care but is also critical to improving health outcomes for people by helping to detect lung cancer earlier.”

CMS’s decision also simplifies requirements for counseling and shared decision-making visits and removes an initial requirement for the reading radiologist to document participation in continuing medical education, which will reduce administrative burden. CMS also added a requirement back to the National Coverage Determination criteria that requires radiology imaging facilities to use a standardized lung nodule identification, classification, and reporting system.

The American Lung Association applauds the decision to update eligibility.

“[The] announcement from CMS will give more people enrolled in Medicare access to lifesaving lung cancer screening. Screening for individuals at high risk is the only tool to catch this disease early when it is more curable,” Harold Wimmer, president and CEO of the American Lung Association, said in a statement. “Unfortunately, only 5.7% of people who are eligible have been screened, so it’s important that we talk with our friends and family who are at high risk about getting screened.”

While access to screening will significantly increase, the American Lung Association recommends CMS go a step further and expand eligibility to individuals up to 80 years of age, as the USPSTF recommendations do, as well as remove the recommendation that individuals cease screening once they have stopped smoking for 15 years.

Given the new guidelines, most private insurance plans will need to update screening coverage policies to reflect the updated guidelines for plan years beginning after March 31.

To read the final decision, visit the CMS website.

A version of this article first appeared on Medscape.com.

The Centers for Medicare & Medicaid Services (CMS) will expand eligibility guidelines for lung cancer screening with low-dose computed tomography for Medicare recipients.

According to the final decision, announced February 10, CMS will lower the age for screening from 55 to 50 years up to 77 years and reduce criteria for tobacco smoking history from at least 30 pack-years to 20 pack-years. The expanded Medicare recommendation will address racial disparities associated with lung cancer, given evidence that one third of Black patients are diagnosed with lung cancer before age 55.

The updated CMS guidelines align closely with recommendations made by the U.S. Preventive Services Task Force (USPSTF) in March 2021. The USPSTF expanded its guidelines for screening to include individuals ages 50 to 80 years, as well as those who have a 20–pack-year smoking history and who currently smoke or have quit within the past 15 years.

Overall, the expanded guidelines will nearly double the number of individuals who are eligible for screening and have the potential to save significantly more lives by identifying cancers at an earlier, more treatable stage.

“Expanding coverage broadens access for lung cancer screening to at-risk populations,” said Lee Felisher, MD, CMS chief medical officer and director of the Center for Clinical Standards and Quality, in a statement. “Today’s decision not only expands access to quality care but is also critical to improving health outcomes for people by helping to detect lung cancer earlier.”

CMS’s decision also simplifies requirements for counseling and shared decision-making visits and removes an initial requirement for the reading radiologist to document participation in continuing medical education, which will reduce administrative burden. CMS also added a requirement back to the National Coverage Determination criteria that requires radiology imaging facilities to use a standardized lung nodule identification, classification, and reporting system.

The American Lung Association applauds the decision to update eligibility.

“[The] announcement from CMS will give more people enrolled in Medicare access to lifesaving lung cancer screening. Screening for individuals at high risk is the only tool to catch this disease early when it is more curable,” Harold Wimmer, president and CEO of the American Lung Association, said in a statement. “Unfortunately, only 5.7% of people who are eligible have been screened, so it’s important that we talk with our friends and family who are at high risk about getting screened.”

While access to screening will significantly increase, the American Lung Association recommends CMS go a step further and expand eligibility to individuals up to 80 years of age, as the USPSTF recommendations do, as well as remove the recommendation that individuals cease screening once they have stopped smoking for 15 years.

Given the new guidelines, most private insurance plans will need to update screening coverage policies to reflect the updated guidelines for plan years beginning after March 31.

To read the final decision, visit the CMS website.

A version of this article first appeared on Medscape.com.

The Centers for Medicare & Medicaid Services (CMS) will expand eligibility guidelines for lung cancer screening with low-dose computed tomography for Medicare recipients.

According to the final decision, announced February 10, CMS will lower the age for screening from 55 to 50 years up to 77 years and reduce criteria for tobacco smoking history from at least 30 pack-years to 20 pack-years. The expanded Medicare recommendation will address racial disparities associated with lung cancer, given evidence that one third of Black patients are diagnosed with lung cancer before age 55.

The updated CMS guidelines align closely with recommendations made by the U.S. Preventive Services Task Force (USPSTF) in March 2021. The USPSTF expanded its guidelines for screening to include individuals ages 50 to 80 years, as well as those who have a 20–pack-year smoking history and who currently smoke or have quit within the past 15 years.

Overall, the expanded guidelines will nearly double the number of individuals who are eligible for screening and have the potential to save significantly more lives by identifying cancers at an earlier, more treatable stage.

“Expanding coverage broadens access for lung cancer screening to at-risk populations,” said Lee Felisher, MD, CMS chief medical officer and director of the Center for Clinical Standards and Quality, in a statement. “Today’s decision not only expands access to quality care but is also critical to improving health outcomes for people by helping to detect lung cancer earlier.”

CMS’s decision also simplifies requirements for counseling and shared decision-making visits and removes an initial requirement for the reading radiologist to document participation in continuing medical education, which will reduce administrative burden. CMS also added a requirement back to the National Coverage Determination criteria that requires radiology imaging facilities to use a standardized lung nodule identification, classification, and reporting system.

The American Lung Association applauds the decision to update eligibility.

“[The] announcement from CMS will give more people enrolled in Medicare access to lifesaving lung cancer screening. Screening for individuals at high risk is the only tool to catch this disease early when it is more curable,” Harold Wimmer, president and CEO of the American Lung Association, said in a statement. “Unfortunately, only 5.7% of people who are eligible have been screened, so it’s important that we talk with our friends and family who are at high risk about getting screened.”

While access to screening will significantly increase, the American Lung Association recommends CMS go a step further and expand eligibility to individuals up to 80 years of age, as the USPSTF recommendations do, as well as remove the recommendation that individuals cease screening once they have stopped smoking for 15 years.

Given the new guidelines, most private insurance plans will need to update screening coverage policies to reflect the updated guidelines for plan years beginning after March 31.

To read the final decision, visit the CMS website.

A version of this article first appeared on Medscape.com.

Junk (germs) in the trunk

It’s been a long drive, and you’ve got a long way to go. You pull into a rest stop to use the bathroom and get some food. Quick, which order do you do those things in?

If you’re not a crazy person, you’d use the bathroom and then get your food. Who would bring food into a dirty bathroom? That’s kind of gross. Most people would take care of business, grab food, then get back in the car, eating along the way. Unfortunately, if you’re searching for a sanitary eating environment, your car may not actually be much better than that bathroom, according to new research from Aston University in Birmingham, England.

Robert Couse-Baker/PxHere

Let’s start off with the good news. The steering wheels of the five used cars that were swabbed for bacteria were pretty clean. Definitely cleaner than either of the toilet seats analyzed, likely thanks to increased usage of sanitizer, courtesy of the current pandemic. It’s easy to wipe down the steering wheel. Things break down, though, once we look elsewhere. The interiors of the five cars all contained just as much, if not more, bacteria than the toilet seats, with fecal matter commonly appearing on the driver’s seat.

The car interiors were less than sanitary, but they paled in comparison with the real winner here: the trunk. In each of the five cars, bacteria levels there far exceeded those in the toilets, and included everyone’s favorites – Escherichia coli and Staphylococcus aureus.

So, snacking on a bag of chips as you drive along is probably okay, but the food that popped out of its bag and spent the last 5 minutes rolling around the back? Perhaps less okay. You may want to wash it. Or burn it. Or torch the entire car for good measure like we’re about to do. Next time we’ll buy a car without poop in it.
 

Shut the lid when you flush

Maybe you’ve never thought about this, but it’s actually extremely important to shut the toilet lid when you flush. Just think of all those germs flying around from the force of the flush. Is your toothbrush anywhere near the toilet? Ew. Those pesky little bacteria and viruses are everywhere, and we know we can’t really escape them, but we should really do our best once we’re made aware of where to find them.

Marco Verch/ccnull.de/CC by 2.0

It seems like a no-brainer these days since we’ve all been really focused on cleanliness during the pandemic, but according to a poll in the United Kingdom, 55% of the 2,000 participants said they don’t put the lid down while flushing.

The OnePoll survey commissioned by Harpic, a company that makes toilet-cleaning products, also advised that toilet water isn’t even completely clean after flushed several times and can still be contaminated with many germs. Company researchers took specialized pictures of flushing toilets and they looked like tiny little Fourth of July fireworks shows, minus the sparklers. The pictures proved that droplets can go all over the place, including on bathroom users.

“There has never been a more important time to take extra care around our homes, although the risks associated with germ spread in unhygienic bathrooms are high, the solution to keeping them clean is simple,” a Harpic researcher said. Since other studies have shown that coronavirus can be found in feces, it’s become increasingly important to keep ourselves and others safe. Fireworks are pretty, but not when they come out of your toilet.
 

The latest in MRI fashion

Do you see that photo just below? Looks like something you could buy at the Lego store, right? Well, it’s not. Nor is it the proverbial thinking cap come to life.

(Did someone just say “come to life”? That reminds us of our favorite scene from Frosty the Snowman.)

Cydney Scott/Boston University

Anywaaay, about the photo. That funny-looking chapeau is what we in the science business call a metamaterial.

Nope, metamaterials have nothing to do with Facebook parent company Meta. We checked. According to a statement from Boston University, they are engineered structures “created from small unit cells that might be unspectacular alone, but when grouped together in a precise way, get new superpowers not found in nature.”

Superpowers, eh? Who doesn’t want superpowers? Even if they come with a funny hat.

The unit cells, known as resonators, are just plastic tubes wrapped in copper wiring, but when they are grouped in an array and precisely arranged into a helmet, they can channel the magnetic field of the MRI machine during a scan. In theory, that would create “crisper images that can be captured at twice the normal speed,” Xin Zhang, PhD, and her team at BU’s Photonics Center explained in the university statement.

In the future, the metamaterial device could “be used in conjunction with cheaper low-field MRI machines to make the technology more widely available, particularly in the developing world,” they suggested. Or, like so many other superpowers, it could fall into the wrong hands. Like those of Lex Luthor. Or Mark Zuckerberg. Or Frosty the Snowman.
 

The highway of the mind

How fast can you think on your feet? Well, according to a recently published study, it could be a legitimate measure of intelligence. Here’s the science.

Epifantsev/Thinkstock

Researchers from the University of Würzburg in Germany and Indiana University have suggested that a person’s intelligence score measures the ability, based on certain neuronal networks and their communication structures, to switch between resting state and different task states.

The investigators set up a study to observe almost 800 people while they completed seven tasks. By monitoring brain activity with functional magnetic resonance imaging, the teams found that subjects who had higher intelligence scores required “less adjustment when switching between different cognitive states,” they said in a separate statement.

It comes down to the network architecture of their brains.

Kirsten Hilger, PhD, head of the German group, described it in terms of highways. The resting state of the brain is normal traffic. It’s always moving. Holiday traffic is the task. The ability to handle the increased flow of commuters is a function of the highway infrastructure. The better the infrastructure, the higher the intelligence.

So the next time you’re stuck in traffic, think how efficient your brain would be with such a task. The quicker, the better.

Junk (germs) in the trunk

It’s been a long drive, and you’ve got a long way to go. You pull into a rest stop to use the bathroom and get some food. Quick, which order do you do those things in?

If you’re not a crazy person, you’d use the bathroom and then get your food. Who would bring food into a dirty bathroom? That’s kind of gross. Most people would take care of business, grab food, then get back in the car, eating along the way. Unfortunately, if you’re searching for a sanitary eating environment, your car may not actually be much better than that bathroom, according to new research from Aston University in Birmingham, England.

Robert Couse-Baker/PxHere

Let’s start off with the good news. The steering wheels of the five used cars that were swabbed for bacteria were pretty clean. Definitely cleaner than either of the toilet seats analyzed, likely thanks to increased usage of sanitizer, courtesy of the current pandemic. It’s easy to wipe down the steering wheel. Things break down, though, once we look elsewhere. The interiors of the five cars all contained just as much, if not more, bacteria than the toilet seats, with fecal matter commonly appearing on the driver’s seat.

The car interiors were less than sanitary, but they paled in comparison with the real winner here: the trunk. In each of the five cars, bacteria levels there far exceeded those in the toilets, and included everyone’s favorites – Escherichia coli and Staphylococcus aureus.

So, snacking on a bag of chips as you drive along is probably okay, but the food that popped out of its bag and spent the last 5 minutes rolling around the back? Perhaps less okay. You may want to wash it. Or burn it. Or torch the entire car for good measure like we’re about to do. Next time we’ll buy a car without poop in it.
 

Shut the lid when you flush

Maybe you’ve never thought about this, but it’s actually extremely important to shut the toilet lid when you flush. Just think of all those germs flying around from the force of the flush. Is your toothbrush anywhere near the toilet? Ew. Those pesky little bacteria and viruses are everywhere, and we know we can’t really escape them, but we should really do our best once we’re made aware of where to find them.

Marco Verch/ccnull.de/CC by 2.0

It seems like a no-brainer these days since we’ve all been really focused on cleanliness during the pandemic, but according to a poll in the United Kingdom, 55% of the 2,000 participants said they don’t put the lid down while flushing.

The OnePoll survey commissioned by Harpic, a company that makes toilet-cleaning products, also advised that toilet water isn’t even completely clean after flushed several times and can still be contaminated with many germs. Company researchers took specialized pictures of flushing toilets and they looked like tiny little Fourth of July fireworks shows, minus the sparklers. The pictures proved that droplets can go all over the place, including on bathroom users.

“There has never been a more important time to take extra care around our homes, although the risks associated with germ spread in unhygienic bathrooms are high, the solution to keeping them clean is simple,” a Harpic researcher said. Since other studies have shown that coronavirus can be found in feces, it’s become increasingly important to keep ourselves and others safe. Fireworks are pretty, but not when they come out of your toilet.
 

The latest in MRI fashion

Do you see that photo just below? Looks like something you could buy at the Lego store, right? Well, it’s not. Nor is it the proverbial thinking cap come to life.

(Did someone just say “come to life”? That reminds us of our favorite scene from Frosty the Snowman.)

Cydney Scott/Boston University

Anywaaay, about the photo. That funny-looking chapeau is what we in the science business call a metamaterial.

Nope, metamaterials have nothing to do with Facebook parent company Meta. We checked. According to a statement from Boston University, they are engineered structures “created from small unit cells that might be unspectacular alone, but when grouped together in a precise way, get new superpowers not found in nature.”

Superpowers, eh? Who doesn’t want superpowers? Even if they come with a funny hat.

The unit cells, known as resonators, are just plastic tubes wrapped in copper wiring, but when they are grouped in an array and precisely arranged into a helmet, they can channel the magnetic field of the MRI machine during a scan. In theory, that would create “crisper images that can be captured at twice the normal speed,” Xin Zhang, PhD, and her team at BU’s Photonics Center explained in the university statement.

In the future, the metamaterial device could “be used in conjunction with cheaper low-field MRI machines to make the technology more widely available, particularly in the developing world,” they suggested. Or, like so many other superpowers, it could fall into the wrong hands. Like those of Lex Luthor. Or Mark Zuckerberg. Or Frosty the Snowman.
 

The highway of the mind

How fast can you think on your feet? Well, according to a recently published study, it could be a legitimate measure of intelligence. Here’s the science.

Epifantsev/Thinkstock

Researchers from the University of Würzburg in Germany and Indiana University have suggested that a person’s intelligence score measures the ability, based on certain neuronal networks and their communication structures, to switch between resting state and different task states.

The investigators set up a study to observe almost 800 people while they completed seven tasks. By monitoring brain activity with functional magnetic resonance imaging, the teams found that subjects who had higher intelligence scores required “less adjustment when switching between different cognitive states,” they said in a separate statement.

It comes down to the network architecture of their brains.

Kirsten Hilger, PhD, head of the German group, described it in terms of highways. The resting state of the brain is normal traffic. It’s always moving. Holiday traffic is the task. The ability to handle the increased flow of commuters is a function of the highway infrastructure. The better the infrastructure, the higher the intelligence.

So the next time you’re stuck in traffic, think how efficient your brain would be with such a task. The quicker, the better.

Junk (germs) in the trunk

It’s been a long drive, and you’ve got a long way to go. You pull into a rest stop to use the bathroom and get some food. Quick, which order do you do those things in?

If you’re not a crazy person, you’d use the bathroom and then get your food. Who would bring food into a dirty bathroom? That’s kind of gross. Most people would take care of business, grab food, then get back in the car, eating along the way. Unfortunately, if you’re searching for a sanitary eating environment, your car may not actually be much better than that bathroom, according to new research from Aston University in Birmingham, England.

Robert Couse-Baker/PxHere

Let’s start off with the good news. The steering wheels of the five used cars that were swabbed for bacteria were pretty clean. Definitely cleaner than either of the toilet seats analyzed, likely thanks to increased usage of sanitizer, courtesy of the current pandemic. It’s easy to wipe down the steering wheel. Things break down, though, once we look elsewhere. The interiors of the five cars all contained just as much, if not more, bacteria than the toilet seats, with fecal matter commonly appearing on the driver’s seat.

The car interiors were less than sanitary, but they paled in comparison with the real winner here: the trunk. In each of the five cars, bacteria levels there far exceeded those in the toilets, and included everyone’s favorites – Escherichia coli and Staphylococcus aureus.

So, snacking on a bag of chips as you drive along is probably okay, but the food that popped out of its bag and spent the last 5 minutes rolling around the back? Perhaps less okay. You may want to wash it. Or burn it. Or torch the entire car for good measure like we’re about to do. Next time we’ll buy a car without poop in it.
 

Shut the lid when you flush

Maybe you’ve never thought about this, but it’s actually extremely important to shut the toilet lid when you flush. Just think of all those germs flying around from the force of the flush. Is your toothbrush anywhere near the toilet? Ew. Those pesky little bacteria and viruses are everywhere, and we know we can’t really escape them, but we should really do our best once we’re made aware of where to find them.

Marco Verch/ccnull.de/CC by 2.0

It seems like a no-brainer these days since we’ve all been really focused on cleanliness during the pandemic, but according to a poll in the United Kingdom, 55% of the 2,000 participants said they don’t put the lid down while flushing.

The OnePoll survey commissioned by Harpic, a company that makes toilet-cleaning products, also advised that toilet water isn’t even completely clean after flushed several times and can still be contaminated with many germs. Company researchers took specialized pictures of flushing toilets and they looked like tiny little Fourth of July fireworks shows, minus the sparklers. The pictures proved that droplets can go all over the place, including on bathroom users.

“There has never been a more important time to take extra care around our homes, although the risks associated with germ spread in unhygienic bathrooms are high, the solution to keeping them clean is simple,” a Harpic researcher said. Since other studies have shown that coronavirus can be found in feces, it’s become increasingly important to keep ourselves and others safe. Fireworks are pretty, but not when they come out of your toilet.
 

The latest in MRI fashion

Do you see that photo just below? Looks like something you could buy at the Lego store, right? Well, it’s not. Nor is it the proverbial thinking cap come to life.

(Did someone just say “come to life”? That reminds us of our favorite scene from Frosty the Snowman.)

Cydney Scott/Boston University

Anywaaay, about the photo. That funny-looking chapeau is what we in the science business call a metamaterial.

Nope, metamaterials have nothing to do with Facebook parent company Meta. We checked. According to a statement from Boston University, they are engineered structures “created from small unit cells that might be unspectacular alone, but when grouped together in a precise way, get new superpowers not found in nature.”

Superpowers, eh? Who doesn’t want superpowers? Even if they come with a funny hat.

The unit cells, known as resonators, are just plastic tubes wrapped in copper wiring, but when they are grouped in an array and precisely arranged into a helmet, they can channel the magnetic field of the MRI machine during a scan. In theory, that would create “crisper images that can be captured at twice the normal speed,” Xin Zhang, PhD, and her team at BU’s Photonics Center explained in the university statement.

In the future, the metamaterial device could “be used in conjunction with cheaper low-field MRI machines to make the technology more widely available, particularly in the developing world,” they suggested. Or, like so many other superpowers, it could fall into the wrong hands. Like those of Lex Luthor. Or Mark Zuckerberg. Or Frosty the Snowman.
 

The highway of the mind

How fast can you think on your feet? Well, according to a recently published study, it could be a legitimate measure of intelligence. Here’s the science.

Epifantsev/Thinkstock

Researchers from the University of Würzburg in Germany and Indiana University have suggested that a person’s intelligence score measures the ability, based on certain neuronal networks and their communication structures, to switch between resting state and different task states.

The investigators set up a study to observe almost 800 people while they completed seven tasks. By monitoring brain activity with functional magnetic resonance imaging, the teams found that subjects who had higher intelligence scores required “less adjustment when switching between different cognitive states,” they said in a separate statement.

It comes down to the network architecture of their brains.

Kirsten Hilger, PhD, head of the German group, described it in terms of highways. The resting state of the brain is normal traffic. It’s always moving. Holiday traffic is the task. The ability to handle the increased flow of commuters is a function of the highway infrastructure. The better the infrastructure, the higher the intelligence.

So the next time you’re stuck in traffic, think how efficient your brain would be with such a task. The quicker, the better.

Common skin reactions to treatment with topical 5-FU for actinic keratosis include erythema, ulceration, and burning. In this case, however, the skin disruption opened the door to secondary impetigo.

Secondary skin infections are a known risk of treatment with topical 5-FU. The agent inhibits thymidylate synthetase, an enzyme involved in the synthesis and repair of DNA. The inhibition of this enzyme can lead to skin disruption with erosion, desquamation, and the risk of superimposed skin infections, as was seen with this patient.¹

Impetigo is a common skin infection affecting the superficial layers of the epidermis and is most commonly caused by gram-positive bacteria, such as Staphylococcus aureus or Streptococcus pyogenes.² Secondary impetigo, also known as impetiginization, is an infection of previously disrupted skin due to eczema, trauma, insect bites, and other conditions. This contrasts with primary impetigo, which results from a direct bacterial invasion of intact healthy skin. While impetigo predominantly affects children between the ages of 2 and 5 years, people of any age can be affected.² Impetigo characteristically manifests with painful erosions, classically covered by honey-colored crusts. Thin-walled vesicles often appear and subsequently rupture.

Treatment options for impetigo include both topical and systemic antibiotics. Topical therapy is preferred for patients with limited skin involvement, while systemic therapy is indicated for patients with numerous lesions. Mupirocin and retapamulin are first-line topical treatments. Systemic antibiotic therapy should provide coverage for both S. aureus and streptococcal infections; cephalexin and dicloxacillin are preferred. Doxycycline, trimethoprim-sulfamethoxazole, or clindamycin can be used if methicillin-resistant Staphylococcus aureus is suspected.³

This patient was advised to try warm soaks (to reduce the crusting) and to follow that with the application of white petrolatum bid. The patient was also prescribed doxycycline 100 mg orally bid for 10 days. At the 1-month follow-up, there was some residual erythema, but the impetigo and crusting had resolved. The actinic keratoses had resolved, as well.

‌

Image courtesy of Daniel Stulberg, MD. Text courtesy of Tess Pei Lemon, BA, University of New Mexico School of Medicine and Daniel Stulberg, MD, FAAFP, Department of Family and Community Medicine, University of New Mexico School of Medicine, Albuquerque

Common skin reactions to treatment with topical 5-FU for actinic keratosis include erythema, ulceration, and burning. In this case, however, the skin disruption opened the door to secondary impetigo.

Secondary skin infections are a known risk of treatment with topical 5-FU. The agent inhibits thymidylate synthetase, an enzyme involved in the synthesis and repair of DNA. The inhibition of this enzyme can lead to skin disruption with erosion, desquamation, and the risk of superimposed skin infections, as was seen with this patient.¹

Impetigo is a common skin infection affecting the superficial layers of the epidermis and is most commonly caused by gram-positive bacteria, such as Staphylococcus aureus or Streptococcus pyogenes.² Secondary impetigo, also known as impetiginization, is an infection of previously disrupted skin due to eczema, trauma, insect bites, and other conditions. This contrasts with primary impetigo, which results from a direct bacterial invasion of intact healthy skin. While impetigo predominantly affects children between the ages of 2 and 5 years, people of any age can be affected.² Impetigo characteristically manifests with painful erosions, classically covered by honey-colored crusts. Thin-walled vesicles often appear and subsequently rupture.

Treatment options for impetigo include both topical and systemic antibiotics. Topical therapy is preferred for patients with limited skin involvement, while systemic therapy is indicated for patients with numerous lesions. Mupirocin and retapamulin are first-line topical treatments. Systemic antibiotic therapy should provide coverage for both S. aureus and streptococcal infections; cephalexin and dicloxacillin are preferred. Doxycycline, trimethoprim-sulfamethoxazole, or clindamycin can be used if methicillin-resistant Staphylococcus aureus is suspected.³

This patient was advised to try warm soaks (to reduce the crusting) and to follow that with the application of white petrolatum bid. The patient was also prescribed doxycycline 100 mg orally bid for 10 days. At the 1-month follow-up, there was some residual erythema, but the impetigo and crusting had resolved. The actinic keratoses had resolved, as well.

‌

Image courtesy of Daniel Stulberg, MD. Text courtesy of Tess Pei Lemon, BA, University of New Mexico School of Medicine and Daniel Stulberg, MD, FAAFP, Department of Family and Community Medicine, University of New Mexico School of Medicine, Albuquerque

Common skin reactions to treatment with topical 5-FU for actinic keratosis include erythema, ulceration, and burning. In this case, however, the skin disruption opened the door to secondary impetigo.

Secondary skin infections are a known risk of treatment with topical 5-FU. The agent inhibits thymidylate synthetase, an enzyme involved in the synthesis and repair of DNA. The inhibition of this enzyme can lead to skin disruption with erosion, desquamation, and the risk of superimposed skin infections, as was seen with this patient.¹

Impetigo is a common skin infection affecting the superficial layers of the epidermis and is most commonly caused by gram-positive bacteria, such as Staphylococcus aureus or Streptococcus pyogenes.² Secondary impetigo, also known as impetiginization, is an infection of previously disrupted skin due to eczema, trauma, insect bites, and other conditions. This contrasts with primary impetigo, which results from a direct bacterial invasion of intact healthy skin. While impetigo predominantly affects children between the ages of 2 and 5 years, people of any age can be affected.² Impetigo characteristically manifests with painful erosions, classically covered by honey-colored crusts. Thin-walled vesicles often appear and subsequently rupture.

Treatment options for impetigo include both topical and systemic antibiotics. Topical therapy is preferred for patients with limited skin involvement, while systemic therapy is indicated for patients with numerous lesions. Mupirocin and retapamulin are first-line topical treatments. Systemic antibiotic therapy should provide coverage for both S. aureus and streptococcal infections; cephalexin and dicloxacillin are preferred. Doxycycline, trimethoprim-sulfamethoxazole, or clindamycin can be used if methicillin-resistant Staphylococcus aureus is suspected.³

This patient was advised to try warm soaks (to reduce the crusting) and to follow that with the application of white petrolatum bid. The patient was also prescribed doxycycline 100 mg orally bid for 10 days. At the 1-month follow-up, there was some residual erythema, but the impetigo and crusting had resolved. The actinic keratoses had resolved, as well.

‌

Image courtesy of Daniel Stulberg, MD. Text courtesy of Tess Pei Lemon, BA, University of New Mexico School of Medicine and Daniel Stulberg, MD, FAAFP, Department of Family and Community Medicine, University of New Mexico School of Medicine, Albuquerque

New research shows that men in their 20s and 30s have worse survival from many different types of brain tumors than women of the same age. And, researchers say, it’s not exactly clear why.

Differences in treatment may mediate some of the association, but biologic sex itself appears to be a stronger risk factor for death, according to the study published online Feb. 8 in Cancer.

The excess in male deaths is “concerning, and we need more clinical data and more biological tumor data within each histologic type of brain tumor to understand why these young adult men who would be otherwise healthy are dying of these brain tumors,” study author Lindsay Williams, PhD, MPH, with the division of epidemiology and clinical research, University of Minnesota, Minneapolis, told this news organization.

Central nervous system tumors rank among the top five cancers diagnosed in young adults aged 20-39 years.

Dr. Williams and her colleagues previously showed that men are more likely to develop brain tumors. Their latest study shows that men die more frequently from brain tumors as well.

Using the National Cancer Database, they identified 47,560 young adults aged 20-39 (47% male) diagnosed with a CNS tumor between 2004 and 2016.

After adjusting for relevant factors, males had a 47% increased risk of dying after a brain tumor diagnosis compared with females (hazard ratio, 1.47; 95% confidence interval, 1.41-1.53).

Males had significantly worse overall survival than females for all CNS tumors combined and for nine of 16 histologic types – namely, diffuse astrocytoma (HR, 1.30), anaplastic astrocytoma (HR, 1.25), glioblastoma (HR, 1.14), oligodendroglioma (HR, 1.37), oligoastrocytic tumors (HR, 1.22), ependymal tumors (HR, 1.29), other malignant gliomas (HR, 1.43), neuronal and mixed neuronal-glial tumors (HR, 1.52), and meningioma (HR, 2.01; all P < .05).

The researchers identified no histologies where females had worse survival.

Five-year survival differed between females and males by at least 5% for all histologies combined (83.2% female and 71.2% male) as well as for diffuse astrocytoma (75.1% vs. 68.5%), anaplastic astrocytoma (63.5% vs. 57.5%), oligoastrocytic tumors (80.2% vs. 74.7%), other malignant gliomas (74.1% vs. 64.9%), and germ cell tumors (92.4% vs. 86.5%).

The researchers estimated that had survival in men been equal to that of women over the study period, 20% of total deaths and 34% of male deaths could have been avoided.

They say future population-based studies are needed to confirm these findings and determine whether tumor biology or responses to therapy are driving forces of the observed male excess in death from brain tumors.

“We cannot discount the role of sex differences in diagnosis, treatment, or behavioral risk factors that may underlie the better survival for women after a brain tumor diagnosis,” they write. 

“Hopefully, our research will increase awareness of sex differences in brain tumor outcomes in young adults and encourage other researchers with similar datasets to look at this same question and see if they observe a similar trend,” Dr. Williams said in an interview.

The study was supported by the National Cancer Institute. Dr. Williams has no relevant disclosures. One author, Christopher L. Moertel, MD, is chief medical officer for OX2 Therapeutics, has stock in OX2 Therapeutics, and reports patents relevant to his relationship with OX2 Therapeutics.

A version of this article first appeared on Medscape.com.

New research shows that men in their 20s and 30s have worse survival from many different types of brain tumors than women of the same age. And, researchers say, it’s not exactly clear why.

Differences in treatment may mediate some of the association, but biologic sex itself appears to be a stronger risk factor for death, according to the study published online Feb. 8 in Cancer.

The excess in male deaths is “concerning, and we need more clinical data and more biological tumor data within each histologic type of brain tumor to understand why these young adult men who would be otherwise healthy are dying of these brain tumors,” study author Lindsay Williams, PhD, MPH, with the division of epidemiology and clinical research, University of Minnesota, Minneapolis, told this news organization.

Central nervous system tumors rank among the top five cancers diagnosed in young adults aged 20-39 years.

Dr. Williams and her colleagues previously showed that men are more likely to develop brain tumors. Their latest study shows that men die more frequently from brain tumors as well.

Using the National Cancer Database, they identified 47,560 young adults aged 20-39 (47% male) diagnosed with a CNS tumor between 2004 and 2016.

After adjusting for relevant factors, males had a 47% increased risk of dying after a brain tumor diagnosis compared with females (hazard ratio, 1.47; 95% confidence interval, 1.41-1.53).

Males had significantly worse overall survival than females for all CNS tumors combined and for nine of 16 histologic types – namely, diffuse astrocytoma (HR, 1.30), anaplastic astrocytoma (HR, 1.25), glioblastoma (HR, 1.14), oligodendroglioma (HR, 1.37), oligoastrocytic tumors (HR, 1.22), ependymal tumors (HR, 1.29), other malignant gliomas (HR, 1.43), neuronal and mixed neuronal-glial tumors (HR, 1.52), and meningioma (HR, 2.01; all P < .05).

The researchers identified no histologies where females had worse survival.

Five-year survival differed between females and males by at least 5% for all histologies combined (83.2% female and 71.2% male) as well as for diffuse astrocytoma (75.1% vs. 68.5%), anaplastic astrocytoma (63.5% vs. 57.5%), oligoastrocytic tumors (80.2% vs. 74.7%), other malignant gliomas (74.1% vs. 64.9%), and germ cell tumors (92.4% vs. 86.5%).

The researchers estimated that had survival in men been equal to that of women over the study period, 20% of total deaths and 34% of male deaths could have been avoided.

They say future population-based studies are needed to confirm these findings and determine whether tumor biology or responses to therapy are driving forces of the observed male excess in death from brain tumors.

“We cannot discount the role of sex differences in diagnosis, treatment, or behavioral risk factors that may underlie the better survival for women after a brain tumor diagnosis,” they write. 

“Hopefully, our research will increase awareness of sex differences in brain tumor outcomes in young adults and encourage other researchers with similar datasets to look at this same question and see if they observe a similar trend,” Dr. Williams said in an interview.

The study was supported by the National Cancer Institute. Dr. Williams has no relevant disclosures. One author, Christopher L. Moertel, MD, is chief medical officer for OX2 Therapeutics, has stock in OX2 Therapeutics, and reports patents relevant to his relationship with OX2 Therapeutics.

A version of this article first appeared on Medscape.com.

New research shows that men in their 20s and 30s have worse survival from many different types of brain tumors than women of the same age. And, researchers say, it’s not exactly clear why.

Differences in treatment may mediate some of the association, but biologic sex itself appears to be a stronger risk factor for death, according to the study published online Feb. 8 in Cancer.

The excess in male deaths is “concerning, and we need more clinical data and more biological tumor data within each histologic type of brain tumor to understand why these young adult men who would be otherwise healthy are dying of these brain tumors,” study author Lindsay Williams, PhD, MPH, with the division of epidemiology and clinical research, University of Minnesota, Minneapolis, told this news organization.

Central nervous system tumors rank among the top five cancers diagnosed in young adults aged 20-39 years.

Dr. Williams and her colleagues previously showed that men are more likely to develop brain tumors. Their latest study shows that men die more frequently from brain tumors as well.

Using the National Cancer Database, they identified 47,560 young adults aged 20-39 (47% male) diagnosed with a CNS tumor between 2004 and 2016.

After adjusting for relevant factors, males had a 47% increased risk of dying after a brain tumor diagnosis compared with females (hazard ratio, 1.47; 95% confidence interval, 1.41-1.53).

Males had significantly worse overall survival than females for all CNS tumors combined and for nine of 16 histologic types – namely, diffuse astrocytoma (HR, 1.30), anaplastic astrocytoma (HR, 1.25), glioblastoma (HR, 1.14), oligodendroglioma (HR, 1.37), oligoastrocytic tumors (HR, 1.22), ependymal tumors (HR, 1.29), other malignant gliomas (HR, 1.43), neuronal and mixed neuronal-glial tumors (HR, 1.52), and meningioma (HR, 2.01; all P < .05).

The researchers identified no histologies where females had worse survival.

Five-year survival differed between females and males by at least 5% for all histologies combined (83.2% female and 71.2% male) as well as for diffuse astrocytoma (75.1% vs. 68.5%), anaplastic astrocytoma (63.5% vs. 57.5%), oligoastrocytic tumors (80.2% vs. 74.7%), other malignant gliomas (74.1% vs. 64.9%), and germ cell tumors (92.4% vs. 86.5%).

The researchers estimated that had survival in men been equal to that of women over the study period, 20% of total deaths and 34% of male deaths could have been avoided.

They say future population-based studies are needed to confirm these findings and determine whether tumor biology or responses to therapy are driving forces of the observed male excess in death from brain tumors.

“We cannot discount the role of sex differences in diagnosis, treatment, or behavioral risk factors that may underlie the better survival for women after a brain tumor diagnosis,” they write. 

“Hopefully, our research will increase awareness of sex differences in brain tumor outcomes in young adults and encourage other researchers with similar datasets to look at this same question and see if they observe a similar trend,” Dr. Williams said in an interview.

The study was supported by the National Cancer Institute. Dr. Williams has no relevant disclosures. One author, Christopher L. Moertel, MD, is chief medical officer for OX2 Therapeutics, has stock in OX2 Therapeutics, and reports patents relevant to his relationship with OX2 Therapeutics.

A version of this article first appeared on Medscape.com.

The risk for acute ischemic stroke in patients with COVID-19 appears to be significantly elevated in the first 3 days after the infection, new research shows.

The study among Medicare beneficiaries with COVID-19 also showed that stroke risk is higher for relatively young older adults, those aged 65 to 74 years, and those without a history of stroke.

The study highlights the impact COVID-19 has on the cardiovascular system, said study author Quanhe Yang, PhD, senior scientist, Division for Heart Disease and Stroke Prevention, Centers for Disease Control and Prevention, Atlanta.

“Clinicians and patients should understand that stroke might be one of the very important clinical consequences of COVID-19.”

The study was presented during the hybrid International Stroke Conference held in New Orleans and online. The meeting was presented by the American Stroke Association, a division of the American Heart Association.

Stroke is the fifth leading cause of death in the U.S. As an increasing number of people become infected with COVID-19, “it’s important to determine if there’s a relationship between COVID and the risk of stroke,” said Dr. Yang.

Findings from prior research examining the link between stroke and COVID-19 have been inconsistent, he noted. Some studies found an association while others did not, and in still others, the association was not as strong as expected.

Many factors may contribute to these inconsistent findings, said Dr. Yang, including differences in study design, inclusion criteria, comparison groups, sample sizes, and countries where the research was carried out. Dr. Yang pointed out that many of these studies were done in the early stages of the pandemic or didn’t include older adults, the population most at risk for stroke.

The current study included 19,553 Medicare beneficiaries aged 65 years and older diagnosed with COVID-19 and hospitalized with acute ischemic stroke. The median age at diagnosis of COVID-19 was 80.5 years, 57.5% were women, and more than 75% were non-Hispanic Whites.

To ensure the stroke occurred after a COVID infection, researchers used a self-controlled case series study design, a “within person” comparison between the risk period and the control period.

They divided the study period (Jan. 1, 2019 to Feb. 28, 2021) into the exposure or stroke risk periods after the COVID diagnosis (0-3 days; 4-7 days; 8-15 days; and 15-28 days) and control periods.

Strokes that occurred 7 days before or 28 days after a COVID diagnosis served as a control period. “Any stroke that occurred outside the risk window is in the control period,” explained Dr. Yang.

He added that the control period provides a baseline. “Without COVID-19, this is what I would expect” in terms of the number of strokes.

To estimate the incidence rate ratio (IRR), investigators compared the incidence of acute ischemic stroke in the various risk periods with control periods.

The IRR was 10.97 (95% confidence interval, 10.30-11.68) at 0-3 days. The risk then quickly declined but stayed higher than the control period. The IRRs were: 1.59 (95% CI, 1.35-1.87) at 4-7 days; 1.23 (95% CI, 1.07-1.41) at 8-14 days; and 1.06 (95% CI, 0.95-1.18) at 15-28 days.

The temporary increase in stroke risk early after an infection isn’t novel; the pattern has been observed with influenza, respiratory infections, and shingles, said Dr. Yang. “But COVID-19 appears to be particularly risky.”

Although the mechanism driving the early increased stroke risk isn’t fully understood, it’s likely tied to an “exaggerated inflammatory response,” said Dr. Yang. This can trigger the cascade of events setting the stage for a stroke – a hypercoagulation state leading to the formation of blood clots that then block arteries to the brain, he said.

It’s also possible the infection directly affects endothelial cells, leading to rupture of plaque, again blocking arteries and raising stroke risks, added Dr. Yang.

The association was stronger among younger beneficiaries, aged 65 to 74 years, compared with those 85 years and older, a finding Dr. Yang said was somewhat surprising. But he noted other studies have found stroke patients with COVID are younger than stroke patients without COVID – by some 5 to 6 years.

“If COVID-19 disproportionately affects younger patients, that may explain the stronger association,” said Dr. Yang. “Stroke risk increases tremendously with age, so if you’re a younger age, your baseline stroke risk is lower.”

The association was also stronger among beneficiaries without a history of stroke. Again, this could be related to the stronger association among younger patients who are less likely to have suffered a stroke. The association was largely consistent across sex and race/ethnicities. 

Dr. Yang stressed that the findings need to be confirmed with further studies.

The study was carried out before widespread use of vaccinations in the U.S. Once those data are available, Dr. Yang and his colleagues plan to determine if vaccinations modify the association between COVID-19 and stroke risk.

The new results contribute to the mounting evidence that a COVID-19 infection “can actually affect multiple human organs structurally or functionally in addition to the impact on [the] respiratory system,” said Dr. Yang.

Some dates of COVID-19 diagnoses may be incorrect due to limited test availability, particularly early in the pandemic. Another limitation of the study was possible misclassification from the use of Medicare real-time preliminary claims.

In a provided statement, Louise D. McCullough, MD, PhD, chair of the ISC 2022 and professor and chair of neurology, McGovern Medical School, University of Texas Health Science Center at Houston, noted that the study focused on older adults because it was examining Medicare beneficiaries.

“But everyone is likely at risk for stroke after COVID,” she said. “Any infection is linked to stroke risk, probably because any infection will cause inflammation, and inflammation can cause clots or thrombus, which is the cause of stroke.”

There was no outside funding for the study. No relevant conflicts of interest were disclosed.

A version of this article first appeared on Medscape.com.

The risk for acute ischemic stroke in patients with COVID-19 appears to be significantly elevated in the first 3 days after the infection, new research shows.

The study among Medicare beneficiaries with COVID-19 also showed that stroke risk is higher for relatively young older adults, those aged 65 to 74 years, and those without a history of stroke.

The study highlights the impact COVID-19 has on the cardiovascular system, said study author Quanhe Yang, PhD, senior scientist, Division for Heart Disease and Stroke Prevention, Centers for Disease Control and Prevention, Atlanta.

“Clinicians and patients should understand that stroke might be one of the very important clinical consequences of COVID-19.”

The study was presented during the hybrid International Stroke Conference held in New Orleans and online. The meeting was presented by the American Stroke Association, a division of the American Heart Association.

Stroke is the fifth leading cause of death in the U.S. As an increasing number of people become infected with COVID-19, “it’s important to determine if there’s a relationship between COVID and the risk of stroke,” said Dr. Yang.

Findings from prior research examining the link between stroke and COVID-19 have been inconsistent, he noted. Some studies found an association while others did not, and in still others, the association was not as strong as expected.

Many factors may contribute to these inconsistent findings, said Dr. Yang, including differences in study design, inclusion criteria, comparison groups, sample sizes, and countries where the research was carried out. Dr. Yang pointed out that many of these studies were done in the early stages of the pandemic or didn’t include older adults, the population most at risk for stroke.

The current study included 19,553 Medicare beneficiaries aged 65 years and older diagnosed with COVID-19 and hospitalized with acute ischemic stroke. The median age at diagnosis of COVID-19 was 80.5 years, 57.5% were women, and more than 75% were non-Hispanic Whites.

To ensure the stroke occurred after a COVID infection, researchers used a self-controlled case series study design, a “within person” comparison between the risk period and the control period.

They divided the study period (Jan. 1, 2019 to Feb. 28, 2021) into the exposure or stroke risk periods after the COVID diagnosis (0-3 days; 4-7 days; 8-15 days; and 15-28 days) and control periods.

Strokes that occurred 7 days before or 28 days after a COVID diagnosis served as a control period. “Any stroke that occurred outside the risk window is in the control period,” explained Dr. Yang.

He added that the control period provides a baseline. “Without COVID-19, this is what I would expect” in terms of the number of strokes.

To estimate the incidence rate ratio (IRR), investigators compared the incidence of acute ischemic stroke in the various risk periods with control periods.

The IRR was 10.97 (95% confidence interval, 10.30-11.68) at 0-3 days. The risk then quickly declined but stayed higher than the control period. The IRRs were: 1.59 (95% CI, 1.35-1.87) at 4-7 days; 1.23 (95% CI, 1.07-1.41) at 8-14 days; and 1.06 (95% CI, 0.95-1.18) at 15-28 days.

The temporary increase in stroke risk early after an infection isn’t novel; the pattern has been observed with influenza, respiratory infections, and shingles, said Dr. Yang. “But COVID-19 appears to be particularly risky.”

Although the mechanism driving the early increased stroke risk isn’t fully understood, it’s likely tied to an “exaggerated inflammatory response,” said Dr. Yang. This can trigger the cascade of events setting the stage for a stroke – a hypercoagulation state leading to the formation of blood clots that then block arteries to the brain, he said.

It’s also possible the infection directly affects endothelial cells, leading to rupture of plaque, again blocking arteries and raising stroke risks, added Dr. Yang.

The association was stronger among younger beneficiaries, aged 65 to 74 years, compared with those 85 years and older, a finding Dr. Yang said was somewhat surprising. But he noted other studies have found stroke patients with COVID are younger than stroke patients without COVID – by some 5 to 6 years.

“If COVID-19 disproportionately affects younger patients, that may explain the stronger association,” said Dr. Yang. “Stroke risk increases tremendously with age, so if you’re a younger age, your baseline stroke risk is lower.”

The association was also stronger among beneficiaries without a history of stroke. Again, this could be related to the stronger association among younger patients who are less likely to have suffered a stroke. The association was largely consistent across sex and race/ethnicities. 

Dr. Yang stressed that the findings need to be confirmed with further studies.

The study was carried out before widespread use of vaccinations in the U.S. Once those data are available, Dr. Yang and his colleagues plan to determine if vaccinations modify the association between COVID-19 and stroke risk.

The new results contribute to the mounting evidence that a COVID-19 infection “can actually affect multiple human organs structurally or functionally in addition to the impact on [the] respiratory system,” said Dr. Yang.

Some dates of COVID-19 diagnoses may be incorrect due to limited test availability, particularly early in the pandemic. Another limitation of the study was possible misclassification from the use of Medicare real-time preliminary claims.

In a provided statement, Louise D. McCullough, MD, PhD, chair of the ISC 2022 and professor and chair of neurology, McGovern Medical School, University of Texas Health Science Center at Houston, noted that the study focused on older adults because it was examining Medicare beneficiaries.

“But everyone is likely at risk for stroke after COVID,” she said. “Any infection is linked to stroke risk, probably because any infection will cause inflammation, and inflammation can cause clots or thrombus, which is the cause of stroke.”

There was no outside funding for the study. No relevant conflicts of interest were disclosed.

A version of this article first appeared on Medscape.com.

The risk for acute ischemic stroke in patients with COVID-19 appears to be significantly elevated in the first 3 days after the infection, new research shows.

The study among Medicare beneficiaries with COVID-19 also showed that stroke risk is higher for relatively young older adults, those aged 65 to 74 years, and those without a history of stroke.

The study highlights the impact COVID-19 has on the cardiovascular system, said study author Quanhe Yang, PhD, senior scientist, Division for Heart Disease and Stroke Prevention, Centers for Disease Control and Prevention, Atlanta.

“Clinicians and patients should understand that stroke might be one of the very important clinical consequences of COVID-19.”

The study was presented during the hybrid International Stroke Conference held in New Orleans and online. The meeting was presented by the American Stroke Association, a division of the American Heart Association.

Stroke is the fifth leading cause of death in the U.S. As an increasing number of people become infected with COVID-19, “it’s important to determine if there’s a relationship between COVID and the risk of stroke,” said Dr. Yang.

Findings from prior research examining the link between stroke and COVID-19 have been inconsistent, he noted. Some studies found an association while others did not, and in still others, the association was not as strong as expected.

Many factors may contribute to these inconsistent findings, said Dr. Yang, including differences in study design, inclusion criteria, comparison groups, sample sizes, and countries where the research was carried out. Dr. Yang pointed out that many of these studies were done in the early stages of the pandemic or didn’t include older adults, the population most at risk for stroke.

The current study included 19,553 Medicare beneficiaries aged 65 years and older diagnosed with COVID-19 and hospitalized with acute ischemic stroke. The median age at diagnosis of COVID-19 was 80.5 years, 57.5% were women, and more than 75% were non-Hispanic Whites.

To ensure the stroke occurred after a COVID infection, researchers used a self-controlled case series study design, a “within person” comparison between the risk period and the control period.

They divided the study period (Jan. 1, 2019 to Feb. 28, 2021) into the exposure or stroke risk periods after the COVID diagnosis (0-3 days; 4-7 days; 8-15 days; and 15-28 days) and control periods.

Strokes that occurred 7 days before or 28 days after a COVID diagnosis served as a control period. “Any stroke that occurred outside the risk window is in the control period,” explained Dr. Yang.

He added that the control period provides a baseline. “Without COVID-19, this is what I would expect” in terms of the number of strokes.

To estimate the incidence rate ratio (IRR), investigators compared the incidence of acute ischemic stroke in the various risk periods with control periods.

The IRR was 10.97 (95% confidence interval, 10.30-11.68) at 0-3 days. The risk then quickly declined but stayed higher than the control period. The IRRs were: 1.59 (95% CI, 1.35-1.87) at 4-7 days; 1.23 (95% CI, 1.07-1.41) at 8-14 days; and 1.06 (95% CI, 0.95-1.18) at 15-28 days.

The temporary increase in stroke risk early after an infection isn’t novel; the pattern has been observed with influenza, respiratory infections, and shingles, said Dr. Yang. “But COVID-19 appears to be particularly risky.”

Although the mechanism driving the early increased stroke risk isn’t fully understood, it’s likely tied to an “exaggerated inflammatory response,” said Dr. Yang. This can trigger the cascade of events setting the stage for a stroke – a hypercoagulation state leading to the formation of blood clots that then block arteries to the brain, he said.

It’s also possible the infection directly affects endothelial cells, leading to rupture of plaque, again blocking arteries and raising stroke risks, added Dr. Yang.

The association was stronger among younger beneficiaries, aged 65 to 74 years, compared with those 85 years and older, a finding Dr. Yang said was somewhat surprising. But he noted other studies have found stroke patients with COVID are younger than stroke patients without COVID – by some 5 to 6 years.

“If COVID-19 disproportionately affects younger patients, that may explain the stronger association,” said Dr. Yang. “Stroke risk increases tremendously with age, so if you’re a younger age, your baseline stroke risk is lower.”

The association was also stronger among beneficiaries without a history of stroke. Again, this could be related to the stronger association among younger patients who are less likely to have suffered a stroke. The association was largely consistent across sex and race/ethnicities. 

Dr. Yang stressed that the findings need to be confirmed with further studies.

The study was carried out before widespread use of vaccinations in the U.S. Once those data are available, Dr. Yang and his colleagues plan to determine if vaccinations modify the association between COVID-19 and stroke risk.

The new results contribute to the mounting evidence that a COVID-19 infection “can actually affect multiple human organs structurally or functionally in addition to the impact on [the] respiratory system,” said Dr. Yang.

Some dates of COVID-19 diagnoses may be incorrect due to limited test availability, particularly early in the pandemic. Another limitation of the study was possible misclassification from the use of Medicare real-time preliminary claims.

In a provided statement, Louise D. McCullough, MD, PhD, chair of the ISC 2022 and professor and chair of neurology, McGovern Medical School, University of Texas Health Science Center at Houston, noted that the study focused on older adults because it was examining Medicare beneficiaries.

“But everyone is likely at risk for stroke after COVID,” she said. “Any infection is linked to stroke risk, probably because any infection will cause inflammation, and inflammation can cause clots or thrombus, which is the cause of stroke.”

There was no outside funding for the study. No relevant conflicts of interest were disclosed.

A version of this article first appeared on Medscape.com.

Among patients with ovarian cancer who have achieved remission, routine surveillance with virtual appointments, along with tumor marker monitoring and imaging, may offer an alternative to the currently mandated frequent in-person visits.

The suggestion comes from Jacqueline Feinberg, MD, gynecologic oncology fellow at Memorial Sloan Kettering Cancer Center, New York, and colleagues, who conducted a retrospective study of 147 patients who experienced ovarian cancer recurrence within 2 years of their first clinical remission, and found that none of these recurrences were detected by physical examination alone.

About one third of these patients had a recurrence that was first detected by tumor marker, over half by imaging, and the rest by the presentation of new symptoms and biopsies taken during nononcologic surgery.

“This finding suggests that virtual visits, which have quickly gained acceptance during the COVID-19 pandemic, combined with a surveillance protocol for tumor marker testing and imaging, may be sufficient to identify ovarian cancer recurrence,” the team concluded. The study was published in the International Journal of Gynecologic Cancer.

The COVID-19 pandemic has accelerated the use of telemedicine, with new international guidelines recommending minimizing in-person contact, noted the authors.

They wondered how this would work in patients who have achieved remission from ovarian cancer.

At MSKCC, the usual surveillance protocol for the first 2 years after ovarian cancer remission includes an in-person physical examination every 3 months, along with CA-125 testing and imaging of the chest, abdomen, and pelvis. For year 3, the time between surveillance testing is extended to every 3-6 months, for the fourth and fifth year, to every 6 months. Beyond 5 years, physical examination and testing for the protein CA-125 are performed annually, and imaging is optional.

However, there is no strong evidence to support this current surveillance regimen, the authors pointed out. They sought to determine if it was possible to do virtual visits instead, along with tumor marker monitoring and imaging.
 

Evidence for virtual exams

To answer that question, Dr. Feinberg and colleagues conducted a retrospective study that included patients who were initially seen from January 2015 to December 2017, and who had achieved clinical remission and then experienced ovarian cancer recurrence with 2 years of remission.

A total of 147 patients were included in the final analysis. None of these patients had their recurrence detected on routine physical exam, including pelvic exam, as the primary method of detection. More than half of patients (n = 81; 55%) had their recurrence detected on radiographic scan, whereas for 46 patients (31%), it was by tumor marker. Among the remaining patients, 17 (12%) experienced new symptoms and for 3 (2%), it was by biopsy during a nononcologic surgery.

By the time treatment was initiated for recurrence, 111 patients (75%) had multiple positive findings; 48 (33%) had symptoms, 21 (14%) had physical exam findings, 106 (72%) had increases in their tumor markers, and 141 (96%) had changes on their imaging.

In addition, 131 (89%) had baseline increases in CA-125, and of 16 remaining patients, 12 experienced a CA-125 increase during recurrence.

There were 21 patients who had positive physical exam findings following their recurrence, which had already been detected. Within this subset, 19 had concurrent symptoms, and for 6 of them, symptom onset had been the primary method of detection. For the 2 patients without symptoms, recurrence was initially detected by a rise in CA-125 on routine check in one patient, by surveillance imaging in the other.

The authors are now planning a pilot virtual intensive surveillance program, where they will evaluate patient-reported outcomes

The study was funded in part through the National Institutes of Health/National Cancer Institute Cancer Center Support Grant P30 CA008748. Study author Dennis Chi, MD, reports personal fees from Bovie Medical (now Apyx Medical), Verthermia, C Surgeries, and Biom’Up, and is also a former stockholder of Intuitive Surgical and TransEnterix. The other authors disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Among patients with ovarian cancer who have achieved remission, routine surveillance with virtual appointments, along with tumor marker monitoring and imaging, may offer an alternative to the currently mandated frequent in-person visits.

The suggestion comes from Jacqueline Feinberg, MD, gynecologic oncology fellow at Memorial Sloan Kettering Cancer Center, New York, and colleagues, who conducted a retrospective study of 147 patients who experienced ovarian cancer recurrence within 2 years of their first clinical remission, and found that none of these recurrences were detected by physical examination alone.

About one third of these patients had a recurrence that was first detected by tumor marker, over half by imaging, and the rest by the presentation of new symptoms and biopsies taken during nononcologic surgery.

“This finding suggests that virtual visits, which have quickly gained acceptance during the COVID-19 pandemic, combined with a surveillance protocol for tumor marker testing and imaging, may be sufficient to identify ovarian cancer recurrence,” the team concluded. The study was published in the International Journal of Gynecologic Cancer.

The COVID-19 pandemic has accelerated the use of telemedicine, with new international guidelines recommending minimizing in-person contact, noted the authors.

They wondered how this would work in patients who have achieved remission from ovarian cancer.

At MSKCC, the usual surveillance protocol for the first 2 years after ovarian cancer remission includes an in-person physical examination every 3 months, along with CA-125 testing and imaging of the chest, abdomen, and pelvis. For year 3, the time between surveillance testing is extended to every 3-6 months, for the fourth and fifth year, to every 6 months. Beyond 5 years, physical examination and testing for the protein CA-125 are performed annually, and imaging is optional.

However, there is no strong evidence to support this current surveillance regimen, the authors pointed out. They sought to determine if it was possible to do virtual visits instead, along with tumor marker monitoring and imaging.
 

Evidence for virtual exams

To answer that question, Dr. Feinberg and colleagues conducted a retrospective study that included patients who were initially seen from January 2015 to December 2017, and who had achieved clinical remission and then experienced ovarian cancer recurrence with 2 years of remission.

A total of 147 patients were included in the final analysis. None of these patients had their recurrence detected on routine physical exam, including pelvic exam, as the primary method of detection. More than half of patients (n = 81; 55%) had their recurrence detected on radiographic scan, whereas for 46 patients (31%), it was by tumor marker. Among the remaining patients, 17 (12%) experienced new symptoms and for 3 (2%), it was by biopsy during a nononcologic surgery.

By the time treatment was initiated for recurrence, 111 patients (75%) had multiple positive findings; 48 (33%) had symptoms, 21 (14%) had physical exam findings, 106 (72%) had increases in their tumor markers, and 141 (96%) had changes on their imaging.

In addition, 131 (89%) had baseline increases in CA-125, and of 16 remaining patients, 12 experienced a CA-125 increase during recurrence.

There were 21 patients who had positive physical exam findings following their recurrence, which had already been detected. Within this subset, 19 had concurrent symptoms, and for 6 of them, symptom onset had been the primary method of detection. For the 2 patients without symptoms, recurrence was initially detected by a rise in CA-125 on routine check in one patient, by surveillance imaging in the other.

The authors are now planning a pilot virtual intensive surveillance program, where they will evaluate patient-reported outcomes

The study was funded in part through the National Institutes of Health/National Cancer Institute Cancer Center Support Grant P30 CA008748. Study author Dennis Chi, MD, reports personal fees from Bovie Medical (now Apyx Medical), Verthermia, C Surgeries, and Biom’Up, and is also a former stockholder of Intuitive Surgical and TransEnterix. The other authors disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Among patients with ovarian cancer who have achieved remission, routine surveillance with virtual appointments, along with tumor marker monitoring and imaging, may offer an alternative to the currently mandated frequent in-person visits.

The suggestion comes from Jacqueline Feinberg, MD, gynecologic oncology fellow at Memorial Sloan Kettering Cancer Center, New York, and colleagues, who conducted a retrospective study of 147 patients who experienced ovarian cancer recurrence within 2 years of their first clinical remission, and found that none of these recurrences were detected by physical examination alone.

About one third of these patients had a recurrence that was first detected by tumor marker, over half by imaging, and the rest by the presentation of new symptoms and biopsies taken during nononcologic surgery.

“This finding suggests that virtual visits, which have quickly gained acceptance during the COVID-19 pandemic, combined with a surveillance protocol for tumor marker testing and imaging, may be sufficient to identify ovarian cancer recurrence,” the team concluded. The study was published in the International Journal of Gynecologic Cancer.

The COVID-19 pandemic has accelerated the use of telemedicine, with new international guidelines recommending minimizing in-person contact, noted the authors.

They wondered how this would work in patients who have achieved remission from ovarian cancer.

At MSKCC, the usual surveillance protocol for the first 2 years after ovarian cancer remission includes an in-person physical examination every 3 months, along with CA-125 testing and imaging of the chest, abdomen, and pelvis. For year 3, the time between surveillance testing is extended to every 3-6 months, for the fourth and fifth year, to every 6 months. Beyond 5 years, physical examination and testing for the protein CA-125 are performed annually, and imaging is optional.

However, there is no strong evidence to support this current surveillance regimen, the authors pointed out. They sought to determine if it was possible to do virtual visits instead, along with tumor marker monitoring and imaging.
 

Evidence for virtual exams

To answer that question, Dr. Feinberg and colleagues conducted a retrospective study that included patients who were initially seen from January 2015 to December 2017, and who had achieved clinical remission and then experienced ovarian cancer recurrence with 2 years of remission.

A total of 147 patients were included in the final analysis. None of these patients had their recurrence detected on routine physical exam, including pelvic exam, as the primary method of detection. More than half of patients (n = 81; 55%) had their recurrence detected on radiographic scan, whereas for 46 patients (31%), it was by tumor marker. Among the remaining patients, 17 (12%) experienced new symptoms and for 3 (2%), it was by biopsy during a nononcologic surgery.

By the time treatment was initiated for recurrence, 111 patients (75%) had multiple positive findings; 48 (33%) had symptoms, 21 (14%) had physical exam findings, 106 (72%) had increases in their tumor markers, and 141 (96%) had changes on their imaging.

In addition, 131 (89%) had baseline increases in CA-125, and of 16 remaining patients, 12 experienced a CA-125 increase during recurrence.

There were 21 patients who had positive physical exam findings following their recurrence, which had already been detected. Within this subset, 19 had concurrent symptoms, and for 6 of them, symptom onset had been the primary method of detection. For the 2 patients without symptoms, recurrence was initially detected by a rise in CA-125 on routine check in one patient, by surveillance imaging in the other.

The authors are now planning a pilot virtual intensive surveillance program, where they will evaluate patient-reported outcomes

The study was funded in part through the National Institutes of Health/National Cancer Institute Cancer Center Support Grant P30 CA008748. Study author Dennis Chi, MD, reports personal fees from Bovie Medical (now Apyx Medical), Verthermia, C Surgeries, and Biom’Up, and is also a former stockholder of Intuitive Surgical and TransEnterix. The other authors disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Engaging with a “chatbot,” a computer program that simulates human conversation, helps prevent eating disorders (EDs) in at-risk individuals, new research suggests.

Results of a randomized trial show that at-risk women who interacted with the chatbot showed lower concern about their weight and body shape compared to a wait-list control group.

“Chatbots are widely used in industry and have begun to be used in medical settings, although few studies have examined their effectiveness for mental health issues and none address EDs or ED prevention,” senior investigator C. Barr Taylor, MD, a research faculty member at Palo Alto (Calif.) University, said in a press release.

“We found that the group with access to the chatbot had a greater reduction in weight and shape concerns, both right after using it at 3 months and at the 6-month follow-up. The effects had sustainability over time, and we also found indication that the chatbot may reduce ED onset more so than the control group, where there was a greater incidence of EDs,” Dr. Taylor told this news organization.

The study was published online Dec. 28, 2021, in the International Journal of Eating Disorders.
 

Deadly disorders

“EDs are a common problem with huge risk factors; and, given how widespread they are, we need scalable tools that can reach a lot of people at low cost, reduce risk factors for developing an ED – which is the second most deadly of all psychiatric illnesses – so prevention is of the utmost importance,” Dr. Taylor said.

The investigators developed a targeted Internet-based preventive program called StudentBodies that utilizes cognitive-behavioral therapy approaches. The program was successful in reducing weight/shape concerns in women at high risk for the onset of an ED, and it reduced ED onset in the highest-risk women.

However, it required trained moderators who spent over 45 minutes with participants. Given the large number of people at risk for an ED who might benefit, the researchers noted that it is unlikely that a human-moderated version would be widely disseminated.

A chatbot may represent a “possible solution to reducing delivery costs” because it mimics aspects of human moderation in simulating conversations, the investigators noted.

“We wanted to take the earlier program we developed into this century and program it for delivery in this new format that would allow for bite-size pieces of information for the chatbot to communicate to the user,” lead author Ellen Fitzsimmons-Craft, PhD, assistant professor of psychiatry, Washington University, St. Louis, told this news organization.

“Our ED prevention online version was more effective when there was guidance from a human moderator who could provide feedback on progress, encourage you to go on, and apply the skills in daily life. But that’s not the most scalable. So we thought that a chatbot, in addition to providing content in this perhaps more engaging format, could also provide some aspect of human moderation, although the person is chatting with a robot,” added Dr. Fitzsimmons-Craft, associate director of the Center for Healthy Weight and Wellness.
 

Tessa will speak to you now

Participants (n = 700 women; mean [SD] age, 21.08 [3.09] years; 84.6% White; 53.8% heterosexual; 31.08% bisexual), were randomized to an intervention group or a wait-list control group (n = 352 and 348, respectively). There were no significant differences between groups in age, race, ethnicity, education, or sexual orientation.

The StudentBodies program was adapted for delivery via a chatbot named Tessa “while retaining the core intervention principles” and referred to as “Body Positive.”

It consisted of several components programmed into the chatbot, which initiated each conversation in a predetermined order. Participants were encouraged to engage in two conversations weekly. The program included an introduction and eight sessions as well as a crisis module that provided users with a referral to a crisis hotline in case of emergency. Referral was triggered on the basis of “recognized keywords,” such as “hurting myself.”

The researchers used the Weight Concerns Scale questionnaire to assess weight and shape concerns and the Internalization: Thin/Low Body Fat subscale of the Sociocultural Attitudes Toward Appearance Questionnaire–4 to “assess the cognitive aspect of thin-ideal internalization.”

Secondary outcomes tested the hypothesis that the chatbot would be more likely to reduce clinical outcomes (ED psychopathology, depression, and anxiety) and prevent ED onset, compared to the control condition.
 

Ready for prime time

At 3- and 6-month follow-up, there was significantly greater reduction in the intervention group compared with the control group in weight/shape concerns (d = -.20, P = .03 and d = -.19, P = .04, respectively), although there were no differences in thin-ideal internalization change.

The chatbot intervention was associated with significantly greater reductions in overall ED psychopathology at 3 months (d = -.29, P = .003) compared to the control condition, but not at 6 months.

Notably, the intervention group had significantly higher odds than the control group of remaining nonclinical for EDs at 3- and 6-month follow-up (OR, 2.37 [95% confidence interval, 1.37-4.11] and OR, 2.13 [95% CI,1.26-3.59], respectively).

“We were very excited about the study, and frankly, I was surprised by the effectiveness [of the chatbot intervention] because I didn’t think it would have as much of an impact as it did,” said Dr. Taylor. “Prevention gets short shrift everywhere, and I think we succeeded very well.”

Dr. Fitzsimmons-Craft added that the National Eating Disorders Association (NEDA) has agreed to make the chatbot available on its website for people who screen positive for having an ED or for being at high risk, and so their group is working with their industry partner, a company called X2AI, which developed the chatbot, to make this happen.

“This is definitely the fastest research-to-practice translation I’ve ever seen, where we can so quickly show that it works and make it available to tens of thousands almost immediately.”

Dr. Fitzsimmons-Craft is optimistic that it will be available to launch the week of Feb. 21, which is National Eating Disorders Week.
 

Innovative, creative research

Commenting on the research, Evelyn Attia, MD, professor of psychiatry, Columbia University Medical Center, and director of the Columbia Center for Eating Disorders New York–Presbyterian Hospital, New York, described the study as “innovative and creative.”

New York-Presbyterian Hospital

Dr. Attia, a member of the Research Advisory Council of the NEDA, noted that the structure of the study is “very preliminary” and that the comparison to a wait-list control makes it hard to know whether this is an effective intervention compared with other types of interventions, rather than compared with no intervention.

“But I’m sure that when the researchers are set up and primed to study this more robustly, they will consider a more active control intervention to see whether this preliminary finding holds up,” she said.

Also commenting on the study, Deborah R. Glasofer, PhD, associate professor of clinical medical psychology (in psychiatry), Columbia Center for Eating Disorders, said, “Higher-than-average concern about appearance – body shape, size, or weight – and a tightly held belief that it is ideal to be thin are known risk factors for the development of an eating disorder.

“This study offers an indication that technology can be leveraged to fill a gap and help folks before unhelpful and sometimes misguided thoughts about food, eating, and appearance evolve into a full-blown eating disorder,” said Dr. Glasofer, who was not involved with the study.

The study was supported by the NEDA Feeding Hope Fund, the National Institute of Mental Health, the National Heart, Lung, and Blood Institute, and the Swedish Research Council. The authors and Dr. Glasofer have disclosed no relevant financial relationships. Dr. Attia is on the board and the Research Advisory Council of NEDA.

A version of this article first appeared on Medscape.com.

Engaging with a “chatbot,” a computer program that simulates human conversation, helps prevent eating disorders (EDs) in at-risk individuals, new research suggests.

Results of a randomized trial show that at-risk women who interacted with the chatbot showed lower concern about their weight and body shape compared to a wait-list control group.

“Chatbots are widely used in industry and have begun to be used in medical settings, although few studies have examined their effectiveness for mental health issues and none address EDs or ED prevention,” senior investigator C. Barr Taylor, MD, a research faculty member at Palo Alto (Calif.) University, said in a press release.

“We found that the group with access to the chatbot had a greater reduction in weight and shape concerns, both right after using it at 3 months and at the 6-month follow-up. The effects had sustainability over time, and we also found indication that the chatbot may reduce ED onset more so than the control group, where there was a greater incidence of EDs,” Dr. Taylor told this news organization.

The study was published online Dec. 28, 2021, in the International Journal of Eating Disorders.
 

Deadly disorders

“EDs are a common problem with huge risk factors; and, given how widespread they are, we need scalable tools that can reach a lot of people at low cost, reduce risk factors for developing an ED – which is the second most deadly of all psychiatric illnesses – so prevention is of the utmost importance,” Dr. Taylor said.

The investigators developed a targeted Internet-based preventive program called StudentBodies that utilizes cognitive-behavioral therapy approaches. The program was successful in reducing weight/shape concerns in women at high risk for the onset of an ED, and it reduced ED onset in the highest-risk women.

However, it required trained moderators who spent over 45 minutes with participants. Given the large number of people at risk for an ED who might benefit, the researchers noted that it is unlikely that a human-moderated version would be widely disseminated.

A chatbot may represent a “possible solution to reducing delivery costs” because it mimics aspects of human moderation in simulating conversations, the investigators noted.

“We wanted to take the earlier program we developed into this century and program it for delivery in this new format that would allow for bite-size pieces of information for the chatbot to communicate to the user,” lead author Ellen Fitzsimmons-Craft, PhD, assistant professor of psychiatry, Washington University, St. Louis, told this news organization.

“Our ED prevention online version was more effective when there was guidance from a human moderator who could provide feedback on progress, encourage you to go on, and apply the skills in daily life. But that’s not the most scalable. So we thought that a chatbot, in addition to providing content in this perhaps more engaging format, could also provide some aspect of human moderation, although the person is chatting with a robot,” added Dr. Fitzsimmons-Craft, associate director of the Center for Healthy Weight and Wellness.
 

Tessa will speak to you now

Participants (n = 700 women; mean [SD] age, 21.08 [3.09] years; 84.6% White; 53.8% heterosexual; 31.08% bisexual), were randomized to an intervention group or a wait-list control group (n = 352 and 348, respectively). There were no significant differences between groups in age, race, ethnicity, education, or sexual orientation.

The StudentBodies program was adapted for delivery via a chatbot named Tessa “while retaining the core intervention principles” and referred to as “Body Positive.”

It consisted of several components programmed into the chatbot, which initiated each conversation in a predetermined order. Participants were encouraged to engage in two conversations weekly. The program included an introduction and eight sessions as well as a crisis module that provided users with a referral to a crisis hotline in case of emergency. Referral was triggered on the basis of “recognized keywords,” such as “hurting myself.”

The researchers used the Weight Concerns Scale questionnaire to assess weight and shape concerns and the Internalization: Thin/Low Body Fat subscale of the Sociocultural Attitudes Toward Appearance Questionnaire–4 to “assess the cognitive aspect of thin-ideal internalization.”

Secondary outcomes tested the hypothesis that the chatbot would be more likely to reduce clinical outcomes (ED psychopathology, depression, and anxiety) and prevent ED onset, compared to the control condition.
 

Ready for prime time

At 3- and 6-month follow-up, there was significantly greater reduction in the intervention group compared with the control group in weight/shape concerns (d = -.20, P = .03 and d = -.19, P = .04, respectively), although there were no differences in thin-ideal internalization change.

The chatbot intervention was associated with significantly greater reductions in overall ED psychopathology at 3 months (d = -.29, P = .003) compared to the control condition, but not at 6 months.

Notably, the intervention group had significantly higher odds than the control group of remaining nonclinical for EDs at 3- and 6-month follow-up (OR, 2.37 [95% confidence interval, 1.37-4.11] and OR, 2.13 [95% CI,1.26-3.59], respectively).

“We were very excited about the study, and frankly, I was surprised by the effectiveness [of the chatbot intervention] because I didn’t think it would have as much of an impact as it did,” said Dr. Taylor. “Prevention gets short shrift everywhere, and I think we succeeded very well.”

Dr. Fitzsimmons-Craft added that the National Eating Disorders Association (NEDA) has agreed to make the chatbot available on its website for people who screen positive for having an ED or for being at high risk, and so their group is working with their industry partner, a company called X2AI, which developed the chatbot, to make this happen.

“This is definitely the fastest research-to-practice translation I’ve ever seen, where we can so quickly show that it works and make it available to tens of thousands almost immediately.”

Dr. Fitzsimmons-Craft is optimistic that it will be available to launch the week of Feb. 21, which is National Eating Disorders Week.
 

Innovative, creative research

Commenting on the research, Evelyn Attia, MD, professor of psychiatry, Columbia University Medical Center, and director of the Columbia Center for Eating Disorders New York–Presbyterian Hospital, New York, described the study as “innovative and creative.”

New York-Presbyterian Hospital

Dr. Attia, a member of the Research Advisory Council of the NEDA, noted that the structure of the study is “very preliminary” and that the comparison to a wait-list control makes it hard to know whether this is an effective intervention compared with other types of interventions, rather than compared with no intervention.

“But I’m sure that when the researchers are set up and primed to study this more robustly, they will consider a more active control intervention to see whether this preliminary finding holds up,” she said.

Also commenting on the study, Deborah R. Glasofer, PhD, associate professor of clinical medical psychology (in psychiatry), Columbia Center for Eating Disorders, said, “Higher-than-average concern about appearance – body shape, size, or weight – and a tightly held belief that it is ideal to be thin are known risk factors for the development of an eating disorder.

“This study offers an indication that technology can be leveraged to fill a gap and help folks before unhelpful and sometimes misguided thoughts about food, eating, and appearance evolve into a full-blown eating disorder,” said Dr. Glasofer, who was not involved with the study.

The study was supported by the NEDA Feeding Hope Fund, the National Institute of Mental Health, the National Heart, Lung, and Blood Institute, and the Swedish Research Council. The authors and Dr. Glasofer have disclosed no relevant financial relationships. Dr. Attia is on the board and the Research Advisory Council of NEDA.

A version of this article first appeared on Medscape.com.

Engaging with a “chatbot,” a computer program that simulates human conversation, helps prevent eating disorders (EDs) in at-risk individuals, new research suggests.

Results of a randomized trial show that at-risk women who interacted with the chatbot showed lower concern about their weight and body shape compared to a wait-list control group.

“Chatbots are widely used in industry and have begun to be used in medical settings, although few studies have examined their effectiveness for mental health issues and none address EDs or ED prevention,” senior investigator C. Barr Taylor, MD, a research faculty member at Palo Alto (Calif.) University, said in a press release.

“We found that the group with access to the chatbot had a greater reduction in weight and shape concerns, both right after using it at 3 months and at the 6-month follow-up. The effects had sustainability over time, and we also found indication that the chatbot may reduce ED onset more so than the control group, where there was a greater incidence of EDs,” Dr. Taylor told this news organization.

The study was published online Dec. 28, 2021, in the International Journal of Eating Disorders.
 

Deadly disorders

“EDs are a common problem with huge risk factors; and, given how widespread they are, we need scalable tools that can reach a lot of people at low cost, reduce risk factors for developing an ED – which is the second most deadly of all psychiatric illnesses – so prevention is of the utmost importance,” Dr. Taylor said.

The investigators developed a targeted Internet-based preventive program called StudentBodies that utilizes cognitive-behavioral therapy approaches. The program was successful in reducing weight/shape concerns in women at high risk for the onset of an ED, and it reduced ED onset in the highest-risk women.

However, it required trained moderators who spent over 45 minutes with participants. Given the large number of people at risk for an ED who might benefit, the researchers noted that it is unlikely that a human-moderated version would be widely disseminated.

A chatbot may represent a “possible solution to reducing delivery costs” because it mimics aspects of human moderation in simulating conversations, the investigators noted.

“We wanted to take the earlier program we developed into this century and program it for delivery in this new format that would allow for bite-size pieces of information for the chatbot to communicate to the user,” lead author Ellen Fitzsimmons-Craft, PhD, assistant professor of psychiatry, Washington University, St. Louis, told this news organization.

“Our ED prevention online version was more effective when there was guidance from a human moderator who could provide feedback on progress, encourage you to go on, and apply the skills in daily life. But that’s not the most scalable. So we thought that a chatbot, in addition to providing content in this perhaps more engaging format, could also provide some aspect of human moderation, although the person is chatting with a robot,” added Dr. Fitzsimmons-Craft, associate director of the Center for Healthy Weight and Wellness.
 

Tessa will speak to you now

Participants (n = 700 women; mean [SD] age, 21.08 [3.09] years; 84.6% White; 53.8% heterosexual; 31.08% bisexual), were randomized to an intervention group or a wait-list control group (n = 352 and 348, respectively). There were no significant differences between groups in age, race, ethnicity, education, or sexual orientation.

The StudentBodies program was adapted for delivery via a chatbot named Tessa “while retaining the core intervention principles” and referred to as “Body Positive.”

It consisted of several components programmed into the chatbot, which initiated each conversation in a predetermined order. Participants were encouraged to engage in two conversations weekly. The program included an introduction and eight sessions as well as a crisis module that provided users with a referral to a crisis hotline in case of emergency. Referral was triggered on the basis of “recognized keywords,” such as “hurting myself.”

The researchers used the Weight Concerns Scale questionnaire to assess weight and shape concerns and the Internalization: Thin/Low Body Fat subscale of the Sociocultural Attitudes Toward Appearance Questionnaire–4 to “assess the cognitive aspect of thin-ideal internalization.”

Secondary outcomes tested the hypothesis that the chatbot would be more likely to reduce clinical outcomes (ED psychopathology, depression, and anxiety) and prevent ED onset, compared to the control condition.
 

Ready for prime time

At 3- and 6-month follow-up, there was significantly greater reduction in the intervention group compared with the control group in weight/shape concerns (d = -.20, P = .03 and d = -.19, P = .04, respectively), although there were no differences in thin-ideal internalization change.

The chatbot intervention was associated with significantly greater reductions in overall ED psychopathology at 3 months (d = -.29, P = .003) compared to the control condition, but not at 6 months.

Notably, the intervention group had significantly higher odds than the control group of remaining nonclinical for EDs at 3- and 6-month follow-up (OR, 2.37 [95% confidence interval, 1.37-4.11] and OR, 2.13 [95% CI,1.26-3.59], respectively).

“We were very excited about the study, and frankly, I was surprised by the effectiveness [of the chatbot intervention] because I didn’t think it would have as much of an impact as it did,” said Dr. Taylor. “Prevention gets short shrift everywhere, and I think we succeeded very well.”

Dr. Fitzsimmons-Craft added that the National Eating Disorders Association (NEDA) has agreed to make the chatbot available on its website for people who screen positive for having an ED or for being at high risk, and so their group is working with their industry partner, a company called X2AI, which developed the chatbot, to make this happen.

“This is definitely the fastest research-to-practice translation I’ve ever seen, where we can so quickly show that it works and make it available to tens of thousands almost immediately.”

Dr. Fitzsimmons-Craft is optimistic that it will be available to launch the week of Feb. 21, which is National Eating Disorders Week.
 

Innovative, creative research

Commenting on the research, Evelyn Attia, MD, professor of psychiatry, Columbia University Medical Center, and director of the Columbia Center for Eating Disorders New York–Presbyterian Hospital, New York, described the study as “innovative and creative.”

New York-Presbyterian Hospital

Dr. Attia, a member of the Research Advisory Council of the NEDA, noted that the structure of the study is “very preliminary” and that the comparison to a wait-list control makes it hard to know whether this is an effective intervention compared with other types of interventions, rather than compared with no intervention.

“But I’m sure that when the researchers are set up and primed to study this more robustly, they will consider a more active control intervention to see whether this preliminary finding holds up,” she said.

Also commenting on the study, Deborah R. Glasofer, PhD, associate professor of clinical medical psychology (in psychiatry), Columbia Center for Eating Disorders, said, “Higher-than-average concern about appearance – body shape, size, or weight – and a tightly held belief that it is ideal to be thin are known risk factors for the development of an eating disorder.

“This study offers an indication that technology can be leveraged to fill a gap and help folks before unhelpful and sometimes misguided thoughts about food, eating, and appearance evolve into a full-blown eating disorder,” said Dr. Glasofer, who was not involved with the study.

The study was supported by the NEDA Feeding Hope Fund, the National Institute of Mental Health, the National Heart, Lung, and Blood Institute, and the Swedish Research Council. The authors and Dr. Glasofer have disclosed no relevant financial relationships. Dr. Attia is on the board and the Research Advisory Council of NEDA.

A version of this article first appeared on Medscape.com.