广州市520名男男性行为者HIV感染情况及影响因素分析

An investigation of HIV infection incidence and risk factors among 520 men who have sex with men in Guangzhou city

目的:了解广州市男男性行为者(MSM)的艾滋病知识、高危行为以及艾滋病、梅毒感染情况及影响因素,为针对性开展MSM人群艾滋病防治工作提供依据。方法:面对面问卷调查520名MSM人群的艾滋病知识、行为情况,并进行艾滋病、梅毒血清学检测。结果:艾滋病知识知晓率为90.19%(469/520);HIV抗体阳性率为9.23%(48/520),梅毒阳性检出率为5.77%(30/520);最近六个月同性肛交性行为时每次均用安全套比例为53.81%(240/446);多因素logistic回归分析结果显示,感染了性病[OR=3.333,95%CI:(1.146~9.696)]、最近六个月与同性发生肛交性行为使用安全套的频率较少[OR=3.460,95%CI:(1.770~6.763)]是HIV感染的危险因素(P<0.05)。结论:广州市MSM人群艾滋病知识知晓率高、安全套使用率低、知行分离严重,艾滋病、梅毒感染率高,应加强有效的干预检测和性病诊治。

Objective：To understand the awareness on HIV/AIDS, high risk behaviors, HIV and syphilis infection, and associated factors among men who have sex with men （MSM） in Guan- gzhou, and to provide scientific evidence for prevention and control of AIDS in MSM. Methods： A total of 520 MSM were recruited, the information about HIV/AIDS awareness and related behav- iors among MSM were collected with a face-to-face questionnaire interview. Serological tests for HIV and syphilis were performed after questionnaire. Results：The awareness rate of HIV/AIDS prevention-related knowledge was 90.19% （469/520）. 9.23% （48/520） were positive for HIV antibody, 5.77 % （ 30/520 ） were positive for syphilis, and 53.81% （240/446） used condoms oc- casionally during homosexual anal sex in recent six months. The multivariate logistic regression a- nalysis showed that MSM who infected with sexually transmitted diseases [ （OR = 3. 333,95% CI： （ 1. 146 -9.696）] , and had anal sex with men in the last six months with less frequency of con- dom use [ OR = 3. 460,95% CI： （ 1. 770 - 6. 763） ] were risk factors of HIV infection in MSM.Conclusion：Among the MSM in Guangzhou, the awareness rate of HIV/AIDS prevention-related knowledge was high, but the rate of condom use was low, the knowing-doing gap was big, and the infection of HIV and syphilis were relatively high. Effective interventions and STD treatment should be strengthened.