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Summary The factor structure of the Beck Depression Inventory for 100 heroin addicted men seeking methadone maintenance therapy was reported. A principal components analysis revealed four meaningful aspects of depression reflecting Cognitive‐affective, Somatic‐motivational, Physiological, and Loss of Interest dimensions; these components were descriptively compared to other factor structures reported for the Beck Depression Inventory. The conclusion was drawn that the structure of depression for heroin addicted men was comparable to that of non‐addicted depressed patients.

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The background characteristics of 45 heroin addicts who had received methadone continuously for over 4 years were compared with those of 1,228 heroin addicts who had not. The results indicated that the continuers were at admission older, White, not dependent on medical assistance, previously treated, using less heroin, and smoking less marijuana than the noncontinuers.

The Profile of Mood States was administered to 197 male heroin addicts seeking inpatient detoxification. A principal factor analysis of the men's self-ratings revealed four major dimensions-Fatigue-inertia, Confused-depression, Anger-hostility, and Friendliness; these dimensions were similar to factors reported for male psychiatric patients, but only the dimensions of Fatigue-inertia, Confused-depression, and Anger-hostility matched comparable factors reported for male heroin addicts seeking methadone maintenance. Fatigue-inertia was the major dimension underlying the inpatient admissions' affect, whereas Anger-hostility was the major dimension underlying the methadone admissions' affect.