Effect of a Community-Level HIV Prevention Intervention on Psychosocial Determinants of HIV Risk Behaviors among Young Black Men Who Have Sex with Men (YBMSM).

In contrast to intervention studies that assess psychosocial factors only as mediators or moderators of HIV risk, the present study assessed the effects of an Mpowerment-based community-level intervention on psychosocial determinants (e.g., depressive symptoms, sexual stigma) of HIV risk behavior among young black MSM. Approximately 330 respondents were surveyed annually for 4 years in each of two sites. General linear models examined change across time between the intervention and comparison communities, and participation effects in the intervention site. Social diffusion (spreading information within networks) of safer sex messages (p < 0.01) and comfort with being gay (p < 0.05) increased with time in intervention versus control. Cross-sectionally, intervention participants responded more favorably (p < 0.05) on social diffusion and depressive symptoms, but less favorably (p < 0.01) on sex in difficult situations and attitudes toward condom use. Findings suggest a need to address broader health issues of MSM as well as sexual risk.