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, compared with a group of controls, results from a novel study show.
“Based on these findings, we recommend that neurocognitive assessment should be performed as early as possible after illness onset,” researchers led by Lars Helldin, MD, PhD, of the department of psychiatry at NU Health-Care Hospital, Region Västra Götaland, Sweden, wrote in a study published in Schizophrenia Research: Cognition (2020 Jun doi: 10.1016/j.scog.2020.100172). “Early identification of cognitive risk factors for poor real-life functional outcome is necessary in order to alert the clinical and rehabilitation services about patients in need of extra care.”
For the study, 291 men and women suffering from schizophrenia spectrum disorder (SSD) and 302 controls underwent assessment with a series of comprehensive neurocognitive tests, including the Global Assessment of Functioning (GAF), the Positive and Negative Syndrome Scale (PANSS), the Specific Level of Functioning Scale (SLOF), the Rey Auditory Verbal Learning Test (RAVLT), and the Wisconsin Card Sorting Test (WCST). The researchers found that the neurocognitive function of the SSD patients was significantly lower than that of the healthy controls on all assessments, with very large effect sizes. “There was considerable diversity within each group, as subgroups of patients scored higher than the control mean and subgroups of controls scored lower than the patient mean, particularly on tests of working memory, verbal learning and memory, and executive function,” wrote Dr. Helldin and associates.
As for the WSCT score, the cognitively intact group had a significantly lower PANSS negative symptom level (P less than .01), a lower PANSS general pathology level (P less than .05), and a lower PANSS total symptom level (P less than .01). As for the WAIS Vocabulary score, the patient group with a higher score than the controls had a significantly lower PANSS negative symptom level (P less than .05).
“Here, we have linked neurocognitive heterogeneity to functional outcome differences, and suggest that personalized treatment with emphasis on practical daily skills may be of great significance especially for those with large baseline cognitive deficits,” the researchers concluded. “Such efforts are imperative not only in order to reduce personal suffering and increase quality of life for the patients, but also to reduce the enormous society level economic costs of functional deficits.”
The study was funded by the Regional Health Authority, VG Region, Sweden. The authors reported having no financial disclosures.
, compared with a group of controls, results from a novel study show.
“Based on these findings, we recommend that neurocognitive assessment should be performed as early as possible after illness onset,” researchers led by Lars Helldin, MD, PhD, of the department of psychiatry at NU Health-Care Hospital, Region Västra Götaland, Sweden, wrote in a study published in Schizophrenia Research: Cognition (2020 Jun doi: 10.1016/j.scog.2020.100172). “Early identification of cognitive risk factors for poor real-life functional outcome is necessary in order to alert the clinical and rehabilitation services about patients in need of extra care.”
For the study, 291 men and women suffering from schizophrenia spectrum disorder (SSD) and 302 controls underwent assessment with a series of comprehensive neurocognitive tests, including the Global Assessment of Functioning (GAF), the Positive and Negative Syndrome Scale (PANSS), the Specific Level of Functioning Scale (SLOF), the Rey Auditory Verbal Learning Test (RAVLT), and the Wisconsin Card Sorting Test (WCST). The researchers found that the neurocognitive function of the SSD patients was significantly lower than that of the healthy controls on all assessments, with very large effect sizes. “There was considerable diversity within each group, as subgroups of patients scored higher than the control mean and subgroups of controls scored lower than the patient mean, particularly on tests of working memory, verbal learning and memory, and executive function,” wrote Dr. Helldin and associates.
As for the WSCT score, the cognitively intact group had a significantly lower PANSS negative symptom level (P less than .01), a lower PANSS general pathology level (P less than .05), and a lower PANSS total symptom level (P less than .01). As for the WAIS Vocabulary score, the patient group with a higher score than the controls had a significantly lower PANSS negative symptom level (P less than .05).
“Here, we have linked neurocognitive heterogeneity to functional outcome differences, and suggest that personalized treatment with emphasis on practical daily skills may be of great significance especially for those with large baseline cognitive deficits,” the researchers concluded. “Such efforts are imperative not only in order to reduce personal suffering and increase quality of life for the patients, but also to reduce the enormous society level economic costs of functional deficits.”
The study was funded by the Regional Health Authority, VG Region, Sweden. The authors reported having no financial disclosures.
, compared with a group of controls, results from a novel study show.
“Based on these findings, we recommend that neurocognitive assessment should be performed as early as possible after illness onset,” researchers led by Lars Helldin, MD, PhD, of the department of psychiatry at NU Health-Care Hospital, Region Västra Götaland, Sweden, wrote in a study published in Schizophrenia Research: Cognition (2020 Jun doi: 10.1016/j.scog.2020.100172). “Early identification of cognitive risk factors for poor real-life functional outcome is necessary in order to alert the clinical and rehabilitation services about patients in need of extra care.”
For the study, 291 men and women suffering from schizophrenia spectrum disorder (SSD) and 302 controls underwent assessment with a series of comprehensive neurocognitive tests, including the Global Assessment of Functioning (GAF), the Positive and Negative Syndrome Scale (PANSS), the Specific Level of Functioning Scale (SLOF), the Rey Auditory Verbal Learning Test (RAVLT), and the Wisconsin Card Sorting Test (WCST). The researchers found that the neurocognitive function of the SSD patients was significantly lower than that of the healthy controls on all assessments, with very large effect sizes. “There was considerable diversity within each group, as subgroups of patients scored higher than the control mean and subgroups of controls scored lower than the patient mean, particularly on tests of working memory, verbal learning and memory, and executive function,” wrote Dr. Helldin and associates.
As for the WSCT score, the cognitively intact group had a significantly lower PANSS negative symptom level (P less than .01), a lower PANSS general pathology level (P less than .05), and a lower PANSS total symptom level (P less than .01). As for the WAIS Vocabulary score, the patient group with a higher score than the controls had a significantly lower PANSS negative symptom level (P less than .05).
“Here, we have linked neurocognitive heterogeneity to functional outcome differences, and suggest that personalized treatment with emphasis on practical daily skills may be of great significance especially for those with large baseline cognitive deficits,” the researchers concluded. “Such efforts are imperative not only in order to reduce personal suffering and increase quality of life for the patients, but also to reduce the enormous society level economic costs of functional deficits.”
The study was funded by the Regional Health Authority, VG Region, Sweden. The authors reported having no financial disclosures.
FROM SCHIZOPHRENIA RESEARCH: COGNITION