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Cognitive Function ...
Cognitive Function and Variability in Antipsychotic Drug-Naive Patients With First-Episode Psychosis : A Systematic Review and Meta-Analysis.
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Lee, Maria (författare)
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Cernvall, Martin (författare)
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Borg, Jacqueline (författare)
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Plavén-Sigray, Pontus (författare)
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Larsson, Cornelia (författare)
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Erhardt, Sophie (författare)
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Sellgren, Carl M (författare)
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- Fatouros-Bergman, Helena (författare)
- Karolinska Institutet
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- Cervenka, Simon (författare)
- Uppsala universitet,Psykiatri
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(creator_code:org_t)
- 2024
- 2024
- Engelska.
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Ingår i: JAMA psychiatry. - 2168-6238.
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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http://kipublication...
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http://kipublication...
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Abstract
Ämnesord
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- IMPORTANCE: Cognitive impairment contributes significantly to clinical outcome and level of function in individuals with psychotic disorders. These impairments are present already at psychosis onset at a group level; however, the question of heterogeneity in cognitive function among patients has not been systematically investigated.OBJECTIVE: To provide an updated quantification of cognitive impairment at psychosis onset before patients receive potentially confounding antipsychotic treatment, and to investigate variability in cognitive function compared with healthy controls.DATA SOURCES: In this systematic review and meta-analysis, PubMed articles were searched up to September 15, 2022.STUDY SELECTION: Original studies reporting data on cognitive function in antipsychotic drug-naive patients with first-episode psychosis (FEP) were included.DATA EXTRACTION AND SYNTHESIS: Data were independently extracted by 2 researchers. Cognitive tasks were clustered according to 6 domains of the Measurement and Treatment Research to Improve Cognition in Schizophrenia (MATRICS) Consensus Cognitive Battery and the domain of executive function. Random-effects model meta-analyses of mean differences and coefficient of variation ratios (CVRs) were performed, as well as meta-regressions, assessment of study quality, and publication bias.MAIN OUTCOMES AND MEASURES: The main outcome measure was Hedges g for mean differences in cognition and CVR for within-group variability.RESULTS: Fifty studies were included in the analysis with a total of 2625 individuals with FEP (mean [SD] age, 25.2 [3.6] years, 60% male; 40% female) and 2917 healthy controls (mean [SD] age, 26.0 [4.6]; 55% male; 45% female). In all cognitive domains, the FEP group displayed significant impairment compared with controls (speed of processing: Hedges g = -1.16; 95% CI, -1.35 to -0.98; verbal learning: Hedges g = -1.08; 95% CI, -1.28 to -0.88; visual learning: Hedges g = -1.05; 95% CI, -1.27 to -0.82; working memory: Hedges g = -1.04; 95% CI, -1.35 to -0.73; attention: Hedges g = -1.03; 95% CI, -1.24 to -0.82; reasoning/problem solving: Hedges g = -0.90; 95% CI, -1.12 to -0.68; executive function: Hedges g = -0.88; 95% CI, -1.07 to -0.69). Individuals with FEP also exhibited a larger variability across all domains (CVR range, 1.34-1.92).CONCLUSIONS AND RELEVANCE: Results of this systematic review and meta-analysis identified cognitive impairment in FEP before the initiation of antipsychotic treatment, with large effect sizes. The high variability within the FEP group suggests the need to identify those individuals with more severe cognitive problems who risk worse outcomes and could benefit the most from cognitive remediation.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Psykiatri (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Psychiatry (hsv//eng)
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