SHORT REPORT |
Veterans Affairs Medical Center and Brown University, Providence, Rhode Island
Group Health Cooperative and University of Washington, Seattle
University of Washington, Seattle, Washington, USA
Correspondence: Dr Mark S.Bauer, VAMC-116R, 830 Chalkstone Avenue, Providence, RI 02908-4799, USA. Tel: +1 401 273 7100, ext. 38631; fax: +1 4 01 457 3311; e-mail: mark____bauer{at}brown.edu
Declaration of interest None. Funding detailed in Acknowledgements.
ABSTRACT
Cross-sectional analysis of 441 individuals with bipolar disorder treated at a US health maintenance organisation investigated the distribution of manic and depressive symptomsin that illness. Clinically significant depressive symptoms occurred in 94.1% of those with (hypo)mania, while 70.1% in a depressive episode had clinically significant manic symptoms. DSM-unrecognised depression-plus-hypomania was over twice as prevalent as DSM-recognised mixed episodes. Depressive symptoms were unimodally distributed in (hypo)mania. Depressive and manic symptoms were positively, not inversely, correlated, and their co-occurrence was associated with worse quality of life. Implications for the DSM and ICD nosological systems are discussed.
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