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目的了解广州市男男性接触者人群(men who have sex with men,MSM)HIV和梅毒感染情况及相关影响因素。方法 2013年11月至2014年6月,对参加性病艾滋病自愿咨询检测且近2年内发生过同性性行为的MSM进行面对面问卷调查,采集外周静脉血检测HIV和梅毒。结果共调查1 046名MSM,HIV和现症梅毒感染率分别为7.36%、4.21%,梅毒相关防治知识知晓率为53.54%。29.45%的MSM近2年内与异性发生过性行为,16.35%与非固定的非婚异性发生过性行为。94.17%的MSM近2年内与同性发生过肛交性行为,每次都使用安全套的比例为37.06%,拥有固定肛交对象的比例为35.43%。多因素logistic回归分析结果显示,非广州户籍、低学历和现症梅毒感染是感染HIV的危险因素,年龄越大、吸毒或曾经吸毒、HIV感染是现症梅毒感染的危险因素。结论广州市MSM人群HIV和梅毒感染已处于较高水平,高危行为普遍存在,应制定有针对性的防控措施,大力开展安全性行为和正确就医行为促进活动,减少HIV和梅毒感染的风险。
Objective To understand the HIV and syphilis infection among men who have sex with men (MSM) in Guangzhou and its influencing factors. Methods From November 2013 to June 2014, face-to-face questionnaires were conducted on MSM who participated in voluntary counseling and testing of STD and AIDS and homosexual behaviors occurred in the past two years. Peripheral venous blood was collected to detect HIV and syphilis. Results A total of 1 046 MSM were investigated. The prevalence of syphilis between HIV and present was 7.36% and 4.21%, respectively. The awareness rate of syphilis-related prevention and control was 53.54%. 29.45% of MSM had sex with heterosexual in the past 2 years and 16.35% with non-marital non-marital sex. 94.17% of MSM had anal sex with same sex within the past two years, with 37.06% using condoms each time and 35.43% having fixed anal sex. Multivariate logistic regression analysis showed that non-Guangzhou residents, low education and current Syphilis infection is a risk factor for HIV infection, the older, drug or drug abuse, HIV infection is a risk factor for the current syphilis infection. Conclusions HIV and syphilis infections in Guangzhou MSM population are at a high level and high-risk behaviors are prevalent. Targeted prevention and control measures should be formulated to promote safe behaviors and proper medical behavior promotion activities to reduce the risk of HIV and syphilis infection.