Year: 1994 Source: Journal of Affective Disorders, v.32, no.1, (September 1994), p.1-11 SIEC No: 19950238

Psychosocial & biological variables were examined in 180 patients to see if there are differences between the chronic & non-chronic course of major depression & the early- & late-onset types of dysthymia. One finding of the study was that significantly more patients in the chronic course depression & early-onset dysthymia groups had attempted suicide. Results suggest that many factors influence the course of major depression & that the early-late onset distinction of dysthymia is valid.