Fig. 3From: Association of nitrite inhalants use and unprotected anal intercourse and HIV/syphilis infection among MSM in China: a systematic review and meta-analysisForest plots comparing characteristics between MSM who use and those who do not use nitrite inhalants. Characteristics compared included, HIV prevalence, syphilis prevalence, and high-risk sexual behaviors. CAI, condomless anal intercourse; P6M, in the past 6 monthsBack to article page