Objectives: HIV disproportionately affects men who have sex with men (MSM), but the HIV prevalence among MSM in Guangzhou did not show the rapid increasing trend as it in elsewhere China. To detect the epidemic and to disclose the characteristics of MSM in Guangzhou susceptible to HIV.
Methods: a cross sectional survey with serological testing biomarkers for HIV, syphilis, HBV and HCV through long-chain referral sampling strategy to control the bias generated from non-statistic sampling.
Results: The most important features of MSM in Guangzhou were young, mobile and comparable educated level and income to the general population. The HIV prevalence was 1.3% (95% confidence interval: 0.3-2.7%) in 2006. Many HIV risk factors were identified: low awareness of HIV risk perception and prevention, high prevalence of diverse, multiple partners and sexually versatile role, more than half of them actively heterosexual, low persistent condom use with both male and female partners, popular commercial sex, and one out 27 experienced needle or syringe sharing for illicit drug use.
Conclusion: HIV has been introduced into MSM in Guangzhou. The risk factors both on the demographic and behavior and the overlapped risky population would contribute to a potential explosive of HIV among MSM, even bridge to female population in Guangzhou if none timely and effective response is implemented.
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