A Cross-sectional Survey and a Randomized Controlled Trial to Evaluate the Efficacy of an Enhanced HIV Voluntary Counseling and Testing in Reducing HIV-related Behaviors Targeting Regular Male Sex Partners among Men Who Have Sex with Men in China

Introduction: The HIV prevalence among men who have sex with men (MSM) in China keeps increasing sharply. A high proportion of the MSM in China have male regular sex partner (RP) and prevalence of unprotected anal intercourse (UAI) involving such RP is higher than when non-RP is involved. Trust, intimacy and cognitive factors are the factors associated with UAI with RP. Several cross-sectional studies have been demonstrated the important factors associated with UAI with RP among MSM in China. However, no study about intervention for MSM-RP is found to be conducted. To reduce UAI with RP, an intervention tailored to RP is urgently developed and identified its efficacy.;Objectives: The study aimed to describe the prevalence of UAI, as well as of which associated factors among MSM-RP in Beijing and Chengdu, China, and to evaluate the efficacy of an enhanced HIV voluntary counseling and testing (VCT) in increasing condom use with RP among MSMRP in China by a randomized controlled trial (RCT).;Subjects and Methods: A cross-sectional survey and a randomized controlled trial have been conducted. For the cross-sectional survey, total 307 HIV negative MSM who have RP have been recruited by three ways. Face to face interview has been conducted to participants. Based on the associated factors found in the cross-sectional survey, interventions including video, education leaflets and enhanced counseling contents have been tailored to RP among MSMRP. For the randomized controlled trial, total 336 MSMRP have been recruited and randomly assigned 169 subjects to the Intervention Group in which participants have been given enhanced VCT plus an audio-visual and four leaflets components and 167 subjects to the Control Group in which participants have been given only standard-of-care VCT at the baseline. Evaluation was conducted at Month 3 and 6. Statistical methods such as descriptive analyses, Chi-square test and logistic regression were used in this study.;Results: The results have been found were the prevalence of UAI with RP among MSMRP was 52.4%, and the Theory of Planned Behavior (TPB) related cognitions, trust, intimacy, depression and anxiety were associated with UAI with RP among MSMRP. In the RCT study, participants in the Intervention Group had less UAI (36.1% vs. 49.1%) than those of the Control Group at Month 3.;Conclusions: This study showed a high prevalence of UAI among MSMRP, whilst trust, intimacy and cognitive factors were associated with UAI with RP. The efficacy of Enhanced VCT tailored to RP has been identified. The acceptability and feasibility of the tailored intervention were demonstrated. In the future HIV prevention programs, the effective intervention should be considered to be incorporated into standard-of-care VCT procedures and be implemented in the specific population.