SynopsisResults on the age/sex specific prevalence of DSM-III affective disorders from the NIMH Epidemiologic Catchment Area Study (ECA), a probability sample of over 18000 adults from five United States communities, are presented. The cross-site means for bipolar disorder ranged from 0·7/100 (2 weeks) to 1–2/100 (lifetime), with a mean age of onset of 21 years and no sex difference in rates. The cross-site means for major depression ranged from 1·5/100 (2 weeks) to 4·4/ 100 (lifetime), with a mean age of onset of 27 years and higher rates in women. The cross-site means for dysthymia, a chronic condition, was 3·1/100 with a higher rate in women. There was reasonable consistency in prevalence rates among sites. The implications of these findings for understanding psychopathology are discussed.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.