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目的了解舟山市男男性行为人群(MSM)艾滋病病毒(HIV)感染现况,并分析该人群感染HIV的影响因素。方法以面对面访谈方式调查267名MSM的艾滋病知识及性行为特征,并进行HIV和梅毒的血清学检测,分析HIV感染的影响因素。结果研究对象平均年龄为(29.45±8.16)岁,艾滋病知识知晓率为88.76%。最近六个月与同性发生过性行为的占91.76%,最近一次发生肛交时安全套使用率为74.29%。最近六个月与异性发生过性行为的占10.11%,最近一次与异性发生性行为时安全套使用率为40.74%。HIV抗体和梅毒抗体阳性率分别为2.62%和8.24%。多因素分析显示,年龄20~<30岁,性活动范围在本市以外,近半年同性性行为时安全套从未使用是HIV感染的危险因素,其OR值(95%CI)分别为2.26(1.74~3.59)、2.03(1.31~2.95)和1.94(1.21~2.69)。结论舟山市MSM人群普遍存在不安全性行为,应针对主要影响因素进行有效的干预。
Objective To understand the status of HIV infection in men who have sex with men (MSM) in Zhoushan City and analyze the influencing factors of HIV infection in this population. Methods A total of 267 MSM patients with HIV / AIDS and sexual behaviors were investigated by face-to-face interviews. HIV and syphilis serological tests were performed to analyze the influencing factors of HIV infection. Results The mean age of study subjects was (29.45 ± 8.16) years old, and AIDS awareness was 88.76%. 91.76% had sex with same-sex in the last six months, and 74.29% when using anal sex last time. In the last six months, 10.11% had sex with heterosexuals, and 40.74% when having sex with the opposite sex lately. The positive rates of HIV antibody and syphilis antibody were 2.62% and 8.24% respectively. Multivariate analysis showed that the age ranged from 20 to 30 years. The range of sexual activity was outside the city. Condom use was a risk factor for HIV infection in homosexual activities in the past six months. The odds ratio (95% CI) was 2.26 (1.74 ~ 3.59), 2.03 (1.31 ~ 2.95) and 1.94 (1.21 ~ 2.69). Conclusion Unsafe behaviors are common in MSM population in Zhoushan City, and effective intervention should be made according to the main influencing factors.