Meta‐analysis of the association between cognitive abilities and everyday functioning in bipolar disorder

Bipolar Disorders - Tập 14 Số 3 - Trang 217-226 - 2012
Colin A. Depp1, Brent T. Mausbach1, Alexandrea L. Harmell1, Gauri N. Savla1, Christopher R. Bowie2, Philip D. Harvey3, Thomas L. Patterson1
1Department of Psychiatry, University of California, San Diego, La Jolla, CA USA
2Departments of Psychology and Psychiatry, Queen’s University, Kingston, ON, Canada
3Department of Psychiatry and Behavioral Sciences, University of Miami Miller School of Medicine, Miami, FL, USA

Tóm tắt

Depp CA, Mausbach BT, Harmell AL, Savla GN, Bowie CR, Harvey PD, Patterson TL. Meta‐analysis of the association between cognitive abilities and everyday functioning in bipolar disorder. Bipolar Disord 2012: 14: 217–226. © 2012 The Authors. Journal compilation © 2012 John Wiley & Sons A/S.Objectives:  Neurocognitive deficits are common in bipolar disorder and contribute to functional disability. However, the degree to which general and specific cognitive deficits affect everyday functioning in bipolar disorder is unknown. The goal of this meta‐analysis was to examine the magnitude of the effect of specific neurocognitive abilities on everyday functioning in bipolar disorder.Methods:  We conducted a comprehensive meta‐analysis of studies that reported associations between performance on objective neuropsychological tasks and everyday functioning among individuals with bipolar disorder. From an initial pool of 486 papers, 22 studies met inclusion criteria, comprising a total of 1344 participants. Correlation coefficients were calculated for 11 cognitive domains and four measurement modalities for functioning. We also examined effect moderators, such as sample age, clinical state, and study design.Results:  The mean Pearson correlation between neurocognitive ability and functioning was 0.27, and was significant for all cognitive domains and varied little by cognitive domain. Correlations varied by methods of everyday functioning assessment, being lower for clinician and self‐report than performance‐based tasks and real‐world milestones such as employment. None of the moderator analyses were significant.Conclusions:  Overall, the strength of association between cognitive ability and everyday functioning in bipolar disorder is strikingly similar to that seen in schizophrenia, with little evidence for differences across cognitive domains. The strength of association differed to a greater extent according to functional measurement approach.

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Bipolar Disorders

Tập 14 Số 3

217-226

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