Gender differences in demographic and clinical characteristics of patients with opioid use disorder entering a comparative effectiveness medication trial.

Background & Objectives: We investigated gender differences in individuals with opioid use disorder (OUD) receiving inpatient services and entering a randomized controlled trial comparing extended-release naltrexone to buprenorphine.

Methods: Participants (N = 570) provided demographic, substance use, and psychiatric information.

Results: Women were significantly younger, more likely to identify as bisexual, live with a sexual partner, be financially dependent, and less likely employed.