Abstract
This study investigated the prevalence of substance use disorders (SUDs) and “substance of choice” in 500 male Turkish psychiatric outpatients manifesting a DSM-IV diagnosed antisocial personality disorder (APD) and a SUD diagnoses (the Structured Clinical Interview for DSM-IV). Lifetime SUDs were diagnosed in 86% of APD subjects. Alcohol, cannabis, and inhalant use disorders were the most frequent among substance use, 75.6%, 67.4%, and 35.6%, respectively. This sample's “substance of choice” differed from reported Western populations; a result which may be influenced by socio-cultural variations. The study's limitations are noted.