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Article
September 1981

Epidemiology of Affective DisordersA Reexamination and Future Directions

Author Affiliations

From the Center for Epidemiologic Studies, Division of Biometry and Epidemiology, National Institute of Mental Health, Rockville, Md (Dr Boyd); the Departments of Epidemiology and Psychiatry, Yale University School of Medicine, New Haven, Conn (Drs Boyd and Weissman); and the Depression Research Unit, Connecticut Mental Health Center, New Haven (Drs Boyd and Weissman).

Arch Gen Psychiatry. 1981;38(9):1039-1046. doi:10.1001/archpsyc.1981.01780340091011
Abstract

• Epidemiologic studies of depression have been difficult to interpret because of differing case definitions and variation in diagnostic procedures between studies. We review data from recent epidemiologic studies in which the new research diagnostic techniques were used. We have divided the data into studies of depressive symptoms, bipolar disorder, and nonbipolar depression. An effort is made to integrate the findings of older studies in light of this new classification. Using this classification, there is less variation in epidemiologic rates (point prevalence, incidence, and lifetime risk) than has been noted in previous reviews. Future directions of research are also discussed.

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