HIV is a serious health threat among men who have sex with men (MSM). A 2-month pilot network-based peer intervention was conducted among Chinese MSM in Hong Kong. Eight MSM peer educators were randomized into the Intervention or the Control Groups and recruited 36 and 33 peers to join the program, respectively. The educators of the Intervention Group delivered standardized and theory-based preventive messages to their peers via daily social interactions. The Control Group received education materials. Baseline between-group differences were non-significant. At post-intervention, intervened participants were more likely than controlled participants to intend to use condoms consistently during anal sex with men in the next 6 months [94.4% versus 60.6%; Relative Risk (RR): 1.56 (95% Confidence Interval (CI): 1.17, 2.08)] and to perceive behavioral control over taking up voluntary HIV testing and counseling [97.2% versus 72.7%; RR: 1.34 (95% CI: 1.08, 1.66)]. Large scale randomized trials are warranted.
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