Sentinel surveillance on HIV status and related factors among men who have sex with men above 50 years in Taizhou Prefecture from 2010 to 2017 / 上海预防医学

ABSTRACT

[Objective] To investigate the HIV infection status and behavioral characteristics of men who have sex with men (MSM) over the age of 50 in Taizhou during 2010-2017 HIV sentinel surveillance, analyze the related factors of HIV infection, and provide basis for developing targeted intervention strategies. [Methods] HIV sentinel surveillance data from 2010 to 2017 in Taizhou was used to analyze the demographic characteristics, HIV awareness, and sexual behaviors of MSM over the age of 50. Also, HIV infection status and related factors were analyzed by multivariate regression analysis. [Results]A total of 334 MSM aged over 50 were surveyed by HIV sentinel surveillance in 2010-2017, and the HIV positive rate was 14.1％. The average age of the 334 MSM was (59.6 ± 7.2) years, and those with junior high school education and below accounted for 76.0％, with awareness of AIDS knowledge being 85.6％. And78.7％ of them had anal sex with men in the past 6 months. Among them, 30.4％ used condoms each time. And 4.8％ of them had commercial sex with men and 37.1％ had sex with women in the past 6months. Multivariate analysis showed that syphilis-positiveness was a risk factor for HIV infection and awareness of HIV-related knowledge proved to be a protective factor for HIV infection. [Conclusion] The MSM over 50 years old in Taizhou has a high rate of HIV-positiveness and high-risk behaviors exist. It is imperative to strengthen dynamic HIV surveillance for this population and behavioral intervention to reduce HIV related risky behavior.