The epedemiological survey of HIV and syphilis infection among young men who have sex with men

Objective To master the prevalence of human immunodeficiency virus (HIV) and syphilis and to analyze the risk factors associated with HIV infection among men who have sex with men(YMSM) in Nanjing during recent 5 years. Methods We used the data of consecutive cross-sectional surveys among MSM conducted in Nanjing from 2013 to 2017.We analyzed the data of participants of age from 16 to 24 years old. Results 1 029 YMSM were included, with the majority of YMSM being single, and also included Han ethnic people and self-identified homosexuals. Over 73.66% of YMSM had at least a college education. The total prevalence of HIV, current syphilis and previous syphilis was 8.65%, 4.18% and 8.84%, respectively. The changing trends of the prevalence were not statistically different (all P>0.05). The proportion of the participants seeking sexual partners through the internet rose from 63.96% to 73.86%, while the rate of the participants who had UAI in the past six months decreased from 55.86% to 36.93%, and condom use rate in the last act of anal sex rose from 62.00% to 80.71%, with all of the differences being statistically significant (all P<0.05). Multivariate logistic analysis showed that the variables of had UAI in the past six months, receptive and dual sexual role, and currently syphilis infection were independently associated with HIV infection. Conclusions HIV and syphilis prevalence among YMSM in Nanjing were high. As the majority of YMSM were students or college above educated, measures of AIDS and sexual transmitted diseases control and prevention in schools and universities should be implemented in a long term. It is necessary to develop internet based intervention methods tailor to YMSM. The key measures for HIV prevention among YMSM were consistent condom use and sexual transmitted diseases prevention and standardized treatment.