Analysis on new HIV infection rate and factors related with maintenance of study cohort in men who have sex with men recruited through internet

Objective To understand the new human immunodeficiency virus (HIV) infection rate of HIV and the factors related with the maintenance of study cohort in men who have sex with men (MSM) and provide evidence for the development of AIDS intervention and prevention strategies in this population. Methods MSM were recruited through internet. Follow up, including questionnaire survey and HIV antibody test, was conducted 6 months after baseline survey for them. Results The follow up found that the new HIV infection rate was 8.6/100 person-years (95%CI: 5.9-11.3). The results of multiple logistic regression analysis showed that local residence for 2 years (RR=2.97, 95%CI: 1.68-5.25), only homosex (RR=3.02, 95%CI: 1.73-5.26), regular homosexual partners (RR=2.12, 95%CI: 1.22-3.68), heterosex in previous 6 month (RR=1.96, 95%CI: 1.05-3.69), receiving HIV test (RR=1.90, 95%CI: 1.09-3.30) were significantly associated with the completion of the follow-up. Conclusion Compared with other area in China, the incidence rate of HIV and the maintenance rate of study cohort in MSM were high in Huzhou. Local residence for 2 years, only homosex, regular homosexual partners, heterosex in previous 6 month, receiving HIV test were the factors related with the maintenance of study cohort.