2011—2015年苏州市男男性行为人群HIV新发感染率变化趋势及影响因素

Prevalence trend and influential factors of HIV incidence among men who have sex with men in Suzhou from 2011to 2015

目的了解苏州市男男性行为人群(MSM)HIV新发感染率变化趋势及影响因素。方法依托国家艾滋病哨点监测,应用BED HIV-1捕获酶免疫法,对该市MSM人群进行连续5年的横断面调查,采用logistic回归模型分析变化趋势及影响因素。结果 2011—2015年每年招募300名左右的MSM参加调查,共招募MSM 1 636名,HIV新发感染率从2011年的4.89%快速上升至2015年的16.23%(P<0.01)。多因素分析显示,网络招募、最近6个月发生无保护性肛交及正在感染梅毒是MSM人群感染HIV的主要危险因素(P值均<0.05)。结论该市MSM人群HIV新发感染率呈上升趋势。促进安全套使用和HIV/梅毒筛查仍为该人群性病艾滋病防治工作的重点。

Objective To understand the prevalence trend of HIV incidence and its influential factors among men who have sex with men （MSM） in Suzhou. Methods Relying on national AIDS sentinel surveillance, 5-year consecutive cross-sectional surveys were conducted among MSM by the IgG-capture BED-EIA （BED） method; logistic regression analysis was used to analyze the influential factors and prevalence trend. Results From 2011 to 2015, about 300 MSMs were recruited annually. A total of 1 636 MSMs were recruited.. HIV incidence rapidly increased from 4.89% in 2011 to 16.23% in 2015（ P 〈0.01）.Multivariate logistic regression analysis showed that MSM who were recruited via internet, engaged in unprotected anal intercourse （UAI） in the past 6 months and were currently infected with syphilis were major risk factors of HIV infection （all P 〈0.05）. Conclusion HIV incidence showed increasing trend among MSM in Suzhou. Condom usage and HIV/syphilis testing promotion should be key point to reduce STD transmission among MSM.