Moderating effect of self-efficacy on the association of intimate partner violence with risky sexual behaviors among men who have sex with men in China

In China, men who have sex with men (MSM) face a high risk of HIV infection. Intimate partner violence (IPV) is common in this population and leads to various adverse consequences, including risky sexual behaviors, substance abuse, and poor mental health, which pose huge challenges to HIV prevention and control. An anonymous cross-sectional study was conducted to investigate the lifetime prevalence of IPV and prevalence of risky sexual behaviors during the previous 6 months in a convenience sample of 578 MSM from 15 cities covering seven geographical divisions in mainland China. The associations between IPV and risky sexual behaviors and the moderating effect of self-efficacy on these associations were explored through univariate and multivariate regression analyses. The prevalence rates of IPV perpetration and victimization were 32.5% and 32.7%, respectively. The proportions of participants who reported inconsistent condom use with regular or casual partners and multiple regular or casual sexual partners were 25.8%, 8.3%, 22.2%, and 37.4%, respectively. Multiple IPV experiences were positively associated with risky sexual behaviors; for example, any IPV victimization was positively associated with multiple regular partners, adjusted odds ratio (ORa) = 1.54, 95% CI [1.02,2.32], and multiple casual partners, ORa = 1.93, 95% CI [1.33, 2.80]. Any IPV perpetration was positively associated with inconsistent condom use with regular partners, ORa = 1.58, 95% CI [1.04, 2.40], and multiple casual partners, ORa = 2.11, 95% CI [1.45, 3.06]. Self-efficacy was identified as a significant moderator of the association between multiple casual sexual partnership and emotional IPV. In conclusion, given the high prevalence of both IPV and risky sexual behaviors among Chinese MSM in this study, the inclusion of self-efficacy in interventions targeting IPV and risky sexual behaviors should be considered.