浙江省温州市居住5年及以下男男性行为人群艾滋病病毒感染调查

Survey of HIV infection in men who have sex with men living for 5 years or less in Wenzhou, Zhejiang province

目的分析浙江省温州市居住≤5年MSM人群HIV感染情况及相关特征。方法2015年2—10月开展温州市MSM人群HIV感染率相关调查，采用同伴推动抽样法（respondentdriven sampling，RDS）招募年龄≥16岁、在温州市连续居住时间≥3个月、最近12个月内与男性发生肛交和／或口交的男性。问卷调查收集其社会人口学、性行为特征、认知及接受干预检测特征、心理健康状况等信息，采集血标本做HIV抗体和梅毒血清学检测。结果RDS法共调查454例MSM，居住时间≤5年者多数以≥25岁、初中及以下文化程度、职业为服务行业和工人、个人月收入〈4000元为主，首次同性性行为年龄≥20岁、最近6个月发生同性肛交的较多。总的HIV阳性率为23．7％（108／454），居住时间≤5年者HIV阳性率为27.3％（73／267），居住时问〉5年者HIV阳性率为18．8％（35／186）（r=4．39，P=0．036）。多因素分析结果表明，HIV感染相关因素包括25—68岁者（0R=12．19，95％CI：2．29～65．02）、最近6个月有异性性行为（OR=0．42，95％C1：0．18～0．96）、自评可能感染HIV（OR=0．06，95％CI：0．01～0．95）、自评不可能感染HIV（OR=O．03，95％CI：0．01～0．35）、现症梅毒阳性OR=3．32（95％CI：1．05～10．52）。结论在温州市居住≤5年的MSM相比于居住〉5年者，HIV阳性率较高，存在较多的高危性行为，需开展针对性的干预措施。

Objective To assess the prevalence of HIV infection and related factors in men who have sex with men （MSM） living for 45 years in Wenzhou of Zhejiang province. Methods MSM who were aged ≥16 years, had lived in Wenzhou for ≥3 months and had anal sex and/or oral sex with men in the last 12 months were recruited through respondent-driven sampling （RDS） from February to October in 2015. The MSM recruited completed a questionnaire for the information collection on socio-demographic characteristics, sexual behavior, awareness of HIV and related intervention, mental health status. Blood samples were collected from them for serological detection of HIV and syphilis antibodies. Software SPSS 18.0 was used to analyze HIV infection and related factors. Results A total of 454 MSM were investigated, 108 of them （23.7%） were HIV positive. There were 267 MSM who lived in Wenzhou for ≤5 years, and 73 of them （27.3%） were HIV positive. Most of them were workers and commercial servants aged ≥25 years with personal monthly income 〈4 000 yuan and educational level of junior high school or below. According to multiple logistics regression analysis, age of 25-68 years old （OR=12.19, 95%CI： 2.29-65.02）, heterosexual behavior in recent 6 months （0R=0.42, 95%CI： 0.18-0.96）, believing it was possible to be infected with HIV （OR=0.06, 95%C1： 0.01-0.95）, believing it was impossible to be infected with HIV （OR= 0.03, 95%CI： 0.01-0.35） and syphilis status （0R=3.32, 95%CI： 1.05-10.52） were the risk factors associated with HIV infection. Conclusion Compared with MSM who lived in Wenzhou for 〉5 years, MSM who lived in Wenzhou for ≤ 5 years had higher HIV infection rate and higher prevalence of risk behavior. It is necessary to conduct targeted intervention among them.