Journal
JOURNAL OF AFFECTIVE DISORDERS
Volume 142, Issue 1-3, Pages 208-212Publisher
ELSEVIER
DOI: 10.1016/j.jad.2012.04.028
Keywords
Bipolar disorder; Functioning; Disability; Major depression; Epidemiology
Categories
Funding
- National Institute for Translational Medicine
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES), Brazil
- Astra-Zeneca
- Eli Lilly
- Janssen-Cilag
- Servier
- CNPq
- CAPES
- NARSAD
- Stanley Medical Research Institute
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Objectives: The objective of this report is to evaluate functioning in bipolar disorder in a population-based sample of young adults (18 to 24 years old). To this end, people with bipolar disorder were compared with matched participants with only depressive episodes and control subjects without a history of mood episodes. Methods: Case-control study nested in a population-based sample. Caseness was confirmed with the Structured Clinical Interview for DSM-IV. The Functioning Assessment Short Test was used as a measure of general functioning. A multivariate model was elaborated to account for potential confounders. Results: The sample consisted of 231 subjects. Both bipolar disorder (coef=0.60, SE=0.14, p<0.001) and major depression (coef=0.44, SE=0.14, p=0.001) were associated with functioning in the multivariate model. Current depressive symptoms appeared to influence functioning in those with major depression (Z=2.05, p=0.04), but not in those with bipolar disorder (Z=0.78, p=0.43). Limitation: Neuropsychological testing was not performed and we see it as an important limitation of this study. Conclusion: This population-based study further reinforces the notion that functional impairment is a fundamental characteristic of bipolar illness. It is present from early stages and is not completely explained by mood symptoms. (C) 2012 Elsevier B.V. All rights reserved.
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