云南省蒙自市男男性行为人群艾滋病感染率及影响因素

目的了解蒙自市男男性行为人群（MSM）人群艾滋病感染率及危险因素。方法 2013年4—7月,采用分类滚雪球方式招募蒙自市MSM人群进行问卷调查并采集静脉血液样本进行HIV抗体、梅毒抗体检测。结果共调查MSM人群102人,平均年龄（28.6±9.4）岁。文化程度以初中及以下为主,但艾滋病知晓率高达100%。HIV感染率8.82%,梅毒阳性率1.96%,6个月内与男性、女性发生性行为每次坚持使用安全套的比例分别为74.51%、14.81%。MSM人群HIV感染与近6个月同性肛交安全套使用频率呈负相关（OR=0.03,P〈0.05）。结论蒙自市MSM感染HIV的主要危险因素为不坚持使用安全套,存在比较严重的知行分离的现象。

Prevalence and risk factors of HIV infection in MSM population in Mengzi,Yunnan

Objective To investigate the prevalence and risk factors of HIV infection in MSM population in Mengzi City. Methods Data on HIV prevalence and risk behaviors in 2013 were obtained from MSM sentinel surveillance database of Mengzi City. Results A total of 102 MSM were recruited with an average age of （28.6 ± 9.4） years. Majority of them had an education level at or below secondary school. However the awareness rate of the AIDS knowledge reached at 100%. HIV and syphilis prevalence were 8.82% , 1.96% respectively. Proportions of MSM who consistently used condoms during sex with male partners in the last six months were 74. 51%, while with female partners were 14. 81%. Participants who consistently used condoms during sex in the last six months times were less likely to be infected with HIV （ OR = 0. 03, P 〈 0. 05）. Conclusion This risk factor of HIV infection in MSM in Mengzi was lower rate of condoms using during sex. We found that the AIDS knowledge in MSM is good, but they have dangerous behavior at the same time.