Author:
BRODATY H.,LUSCOMBE G.,PEISAH C.,ANSTEY K.,ANDREWS G.
Abstract
Background. There is still a relative paucity of information about the long-term course of depression.Methods. Consecutive patients admitted to a teaching hospital psychiatry unit with symptoms of depression, previously assessed at 6 months and 2, 5 and 15 years after index admission, were reviewed at 25 years (N = 49, including eight informants of deceased probands, of an original 145 with major depression (DEPs)). Prospective psychiatric (N = 22) and retrospective surgical (N = 50) control groups assessed after 25 years were used for comparison.Results. A further decade of follow-up confirmed the chronicity of depression. Of depressed patients (DEPs) followed for the full 25-year-period only 12% of the 49 original DEPs recovered and remained continuously well, 84% experienced recurrences, 2% experienced an unremitting course and another 2% died by suicide. Note that in the first 15-year-period 6% (9/145 DEPs) committed suicide, a further 38 died and 32 were lost to follow-up. They experienced an average of three episodes of depression over the 25 years. In the decade since the 15-year follow-up, 27% improved in clinical outcome (including four of five previously chronically depressed patients), 55% remained unchanged and 18% worsened; and the number of episodes per year declined. Patients initially diagnosed with neurotic or endogenous depression had similar long-term outcomes. The criteria for a current DSM-III-R disorder were met by 37% of DEPs, including 11% with depression or dysthymia. On the global assessment of functioning scale 78% of the DEPs had some impairment compared to 62% of psychiatric controls and 40% of surgical controls.Conclusion. Even after 25 years, severe depressive disorders appear to have poor long-term outcomes. Patients with chronic outcomes over 15 years can improve when followed over longer periods.
Publisher
Cambridge University Press (CUP)
Subject
Psychiatry and Mental health,Applied Psychology
Cited by
58 articles.
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