The Psychiatric Research Interview for Substance and Mental Disorders (PRISM) is a highly reliable (Hasin et al., 2006b) and valid (Torrens et al., 2004) semi-structured clinician-administered interview designed to evaluate current and lifetime DSM-IV disorders. The PRISM was administered by clinicians who received extensive, structured training and supervision, as described elsewhere (Hasin et al., 2002, 2006b). PRISM interviewers were clinicians who had at least a master’s degree and were experienced in treating patients with substance use and psychiatric disorders. The PRISM obtained detailed information on the 11 abuse and dependence criteria for substance-specific DSM-IV SUDs, as well as craving (i.e., strong desire or urge to use the substance); we analysed these using the prior-12-month timeframe. The PRISM also assesses mood, anxiety, and two personality disorders (antisocial and borderline) according to DSM-IV criteria (Hasin et al., 2002, 2006b). For differential item functioning analyses, we created three combined-disorder variables: mood disorder (major depressive disorder, bipolar I or 2, N = 129); anxiety disorder (generalized anxiety, panic with/without agoraphobia, social and specific phobia, N = 74) and personality disorder (lifetime antisocial and borderline,
