Depression in Opioid Users Varies with Substance Use Status

Abstract

The relation of substance use status to depressed mood during careers of 173 opioid users was estimated using the Zung Self-Rating Depression Scale. The data suggested a progression in severity of depression from those abstinent or using occasionally, who were least depressed, through intermediate substance use states, to those dependent on illicit opioids, who were most depressed. One hundred five subjects completed the Scale in two interviews separated by a mean of 4.5 years. Change in substance use status from not dependent at first interview to dependent at second interview was associated with increased depression.