Sex differences in substance use, health, and social functioning among opioid users receiving methadone treatment: a multicenter cohort study

Despite the growing numbers of men and women with opioid use disorder in Canada, sex-specific issues in treatment have not been re-examined in the current population of patients with opioid addiction. We aimed to evaluate sex differences in substance use, health, and social functioning among men and women currently receiving methadone treatment for opioid use disorder in Ontario, Canada. We recruited 503 participants with opioid dependence...