“…Over the years, the CHSCP has guided studies on HIV and hepatitis risk, and health outcomes among drug-abusing and homeless adults (Nyamathi et al, 2007; Nyamathi, Hudson, Greengold, & Leake, 2012; Nyamathi, Stein, Dixon, Longshore, & Galaif, 2003; Stein & Nyamathi, 2004) and among ex-offenders (Nyamathi et al, in press). In this framework, an inclusion of antecedent factors such as type of facility incarcerated (jail vs prison), type of drug used and whether single or poly drug pattern, age, education, and mental health history) were of interest in our study.…”