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Norms for the Screen for Cognitive Impairment in Psychiatry and cognitive trajectories in bipolar disorder

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BACKGROUND: The International Society for Bipolar Disorders Targeting Cognition Task Force recommends screening for and monitoring of cognitive impairments in patients with bipolar disorder (BD) with the Screen for Cognitive Impairment in Psychiatry (SCIP). The study aimed to provide the first demographically adjusted norms and change norms for the SCIP and to compare the cognitive trajectory over one year in remitted BD patients with normative cognitive change.

METHODS: Patients with fully or partially remitted BD and healthy controls (HC) were assessed with the SCIP at baseline and at a one-year follow-up. Regression-based models were used to determine demographically adjusted norms and change norms. Using the change models, predicted follow-up scores were calculated for BD and HC, and independent t-tests were used to compare deviations of the observed from the predicted follow-up scores for BD vs. HC to assess differences in cognitive trajectories.

RESULTS: Baseline data were collected for n=273 HC and n=218 BD, and follow-up data for n=139 HC and n=74 BD. Baseline norm models included age, sex and years of education, while change models included baseline SCIP scores and age. Patients with follow-up data showed selective impairments within verbal learning and recall at baseline. They followed the normative cognitive trajectories for all cognitive domains but verbal learning.

LIMITATIONS: Cognition was assessed with a screening tool.

CONCLUSIONS: We recommend implementing demographically adjusted norms and change norms for the SCIP in clinical and research settings. Change norms seem sensitive to subtle and selective cognitive decline over one year in remitted BD.

Original languageEnglish
JournalJournal of Affective Disorders
Volume281
Pages (from-to)33-40
Number of pages8
ISSN0165-0327
DOIs
Publication statusPublished - 15 Feb 2021

Bibliographical note

Publisher Copyright:
© 2020

Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.

    Research areas

  • bipolar disorder, Cognition, neuropsychological tests

ID: 61455743