Personality disorders in gay, lesbian, bisexual, and transgender chemically dependent patients.

This study sought to examine personality disorders and their related clinical variables in a sample of gay, lesbian, bisexual, and transgender (GLBT) individuals with substance use disorders. Study participants were 145 GLBT patients who were admitted to a residential dual diagnosis chemical dependency treatment program. A total of 136 (93.8%) had at least one personality disorder. The most common personality disorders were borderline (n = 93; 64.1%), obsessive-compulsive (n = 82; 56.6%), and avoidant (n = 71; 49.0%) personality disorders. Preliminary data suggest that there is a high prevalence of personality disorders in the GLBT population undergoing chemical dependency treatment.