Factors Associated With Sexual Risk Behaviors Among People Who Use Drugs in Communities in Cambodia.

In Cambodia, HIV prevalence at 4% remains high among people who use drugs (PWUD). Complex and overlapping risk behaviors may enhance sexual transmission risk beyond PWUD. This study, therefore, aims to assess the factors associated with sexual risk behaviors among PWUD. Respondent Driven Sampling was used to recruit 1626 PWUD. Univariate and multivariate logistic regression analyses were used to identify factors associated with transmission risk including that high mental disorder scores were a strong predictor of sexual risk behaviors (odds ratio [OR] ranged from 1.9 to 2.8). Factors associated with sexual risk behaviors varied by gender: for men, these included geographical regions, non-married status, and heroin use; and for women, factors were age ≤20 years (OR = 5.4), living with friends (OR = 6.4), living in Central coastal region (OR = 6.1), and heroin use (OR = 4.8).