One-year incidence rate of major depression and other psychiatric disorders in 239 alcoholic men.

The rate of depressive symptoms among alcoholics is high, but many of these syndromes appear to be alcohol-induced mood disorders and might not represent major depressive episodes independent of heavy drinking. The present study examines one aspect of the relationship between alcoholism and depression by evaluating the incidence of new episodes of major depressive disorders among alcohol-dependent men during the year following treatment. One year following discharge from an alcohol treatment program, structured face-to-face interviews were carried out with 239 primary alcoholic men, as well as additional informants. Approximately 4% of the men developed depressive episodes while drinking heavily, but only 2.1% demonstrated major depressions independent of heavy alcohol intake. There was no evidence of an increased incidence of any other major psychiatric disorder during the year of follow-up. These results are consistent with prospective studies of children of alcoholics and of longitudinal evaluations of general population samples. They do not indicate that in the present sample most primary alcohol-dependent men have elevated rates for major depressive disorders independent of alcohol-induced mood syndromes. However, it is likely that in the context of heavy drinking severe, although temporary, depressive episodes are likely to be observed.