Cited by 89Bipolar Disorder and TreatmentDementia and Cognitive Impairment ResearchSchizophrenia research and treatment

Two-year course of cognitive function and instrumental activities of daily living in older adults with bipolar disorder: evidence for neuroprogression?

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Gildengers, A. G., Chisholm, D., Butters, M. A., Anderson, S. J., Begley, A., Holm, M., Rogers, J. C., Reynolds, C. F. +1 more·2013·Psychological Medicine

Abstract

Background: While bipolar disorder (BD) is a leading cause of disability, and an important contributor to disability in BD is cognitive impairment, there is little systematic research on the longitudinal course of cognitive function and instrumental activities of daily living (IADLs) in late-life. In this report, we characterize the 2-year course of cognitive function and IADLs in older adults with BD. Method: We recruited non-demented individuals 50 years and older with BD I or BD II (n = 47) from out-patient clinics or treatment studies at the University of Pittsburgh. Comparator subjects (‘controls’) were 22 individuals of comparable age and education with no psychiatric or neurologic history, but similar levels of cardiovascular disease. We assessed cognitive function and IADLs at baseline, 1- and 2-year time-points. The neuropsychological evaluation comprised 21 well-established and validated tests assessing multiple cognitive domains. We assessed IADLs using a criterion-referenced, performance-based instrument. We employed repeated-measures mixed-effects linear models to examine trajectory of cognitive function. We employed non-parametric tests for analysis of IADLs. Results: The BD group displayed worse cognitive function in all domains and worse IADL performance than the comparator group at baseline and over follow-up. Global cognitive function and IADLs were correlated at all time-points. The BD group did not exhibit accelerated cognitive decline over 2 years. Conclusions: Over 2 years, cognitive impairment and associated functional disability of older adults with BD appear to be due to long-standing neuroprogressive processes compounded by normal cognitive aging rather than accelerated cognitive loss in old age.

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Authors
Gildengers, A. G., Chisholm, D., Butters, M. A., Anderson, S. J., Begley, A., Holm, M., Rogers, J. C., Reynolds, C. F., & Mulsant, B. H.
Affiliations
  • University of Pittsburgh (US)
  • Centre for Addiction and Mental Health (CA)
Corresponding author
Butters, M. A.
Venue
Psychological Medicine
Published
2012-07-30
Volume
43
Issue
4
Pages
801-811
ISSN
  • 0033-2917 (ISSN-L)
  • 1469-8978
OpenAlex
W2150650493
Cited by
89
References
45
Citations by year
2026: 5 · 2025: 4 · 2024: 4 · 2023: 2 · 2022: 5 · 2021: 7 · 2020: 9 · 2019: 3 · 2018: 6 · 2017: 18 · 2016: 7 · 2015: 7 · 2014: 6 · 2013: 6
FWCI
4.34
Type
journal article
Language
en
Open access
Locations
  • Psychological Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (UL1TR000005)
  • National Institute on Aging (P30AG024827)
  • National Institute of Mental Health (U01 MH68846, P30 MH68446, R01MH072947, U01MH068846, P30MH090333, R01MH084921, R01MH080240, K23MH073772, P30MH071944, K24MH069430, R01MH043832)
  • National Center for Advancing Translational Sciences
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Bipolar Disorder and Treatment
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
Keywords
bipolar disorder, older adults, cognitive impairment, instrumental activities of daily living, functional disability, neuroprogression, cognitive aging, longitudinal cognitive trajectories, cognitive decline
MeSH terms
Activities of Daily Living, Aged, Aged, 80 and over, Aging, Bipolar Disorder, Cognition, Cognition Disorders, Female, Humans, Interview, Psychological, Longitudinal Studies, Male, Middle Aged, Neuropsychological Tests, Linear Models, Case-Control Studies, Disease Progression, Statistics, Nonparametric

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