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    ABSTRACT: To determine feasibility and effectiveness of the intervention on HIV/AIDS among MSM based on venues and peer network. The intervention trial was conducted in Mianyang and Yibin in Sichuan province, where the cultural and social environment were similar. These two cities have no HIV/AIDS intervention conducted yet before this study. The intervention was conducted in Mianyang, while Yibin was regarded as control, in which education materials related HIV/AIDS and VCT service were available. Intervention in Mianyang included MSM venue intervention distributing the education materials, condom and promoting HIV-test and STIs clinic referral by 40 MSM as Popular Opinion Leaders who received the knowledge and intervention skill training.Meanwhile, Popular Opinion Leader intervention was implemented in MSM peer network to advocate safe sex. After 6-month intervention the survey was conducted to assess the effectiveness of intervention. The scores of knowledge related HIV/STDs and self-efficacy of condom use was 1.293 (95%CI: 0.657 - 1.292, P < 0.05) and 1.556 (95%CI: 0.656 - 2.456, P < 0.05) higher in post-intervention than in pre-intervention which was (12.42 +/- 0.232) and (10.25 +/- 0.327) respectively in Mianyang, while no significant changing in Yibin during the time. Score of knowledge related HIV/STDs increase 0.577 (95%CI: -0.173 - 1.327, P > 0.05) in post-intervention compared with (10.40 +/- 0.412) in pre-intervention and score of self-efficacy of condom use decreased 0.362 from 9.86 +/- 0.547 in pre-intervention (95%CI: -1.458 - 0.534, P > 0.05). In the six months prior to survey, the rate of unprotected sexual intercourse with male casual sexual partners in last 3 times decreased to 11.0% (22/200) (OR(adjusted) = 0.472, 95%CI: 0.265 - 0.841, P < 0.05) from 19.5% (39/200) baseline in Manyang, while in Yibin that increased to 19.0% (38/200) from 17.5% (35/200) in baseline (OR(adjusted) = 1.153, 95%CI: 0.660 - 2.014, P > 0.05). The rate of HIV-test increased significantly from 9.0% (18/200) to 22.0% (44/200) (OR = 2.852, 95%CI: 1.583 - 5.138, P < 0.05) in intervention city and Accordingly in the control, that was 24.5% (29/200) in baseline and 24.0% (28/200) in post-intervention (OR = 0.960, 95%CI: 0.548 - 1.682, P > 0.05). No difference was found in number of male sexual partner pre- and post-intervention both in intervention and control city. The intervention based on MSM venues and peer network among MSM is feasible and can increase knowledge related HIV/STDs and self-efficacy and as well as condom use and HIV testing.
    Zhonghua yu fang yi xue za zhi [Chinese journal of preventive medicine] 11/2009; 43(11):970-6.