Behavioral, biomedical, and knowledge outcomes of HIV intervention studies among Chinese MSM.

NOTE: MSM: men who have sex with men; IG: intervention group; CG: comparison group; AI: anal intercourse; CP: casual partners; RP: regular partners; VCT: voluntary counseling and testing;*Gao et al. [20], 2005 conducted 2 independent intervention patterns with the same control group, including self-facilitate peer-led intervention and social-facilitate peer-led intervention;**Knowledge scores as score mean (standard deviance).