论文部分内容阅读
目的了解男男性行为者(MSM)同性偶然性伴数及影响因素。方法对2009年绵阳市建立的MSM人群开放性研究队列进行随访调查,招募405人,对其进行相关行为学和血清学调查。结果 83.7%调查对象有偶然性行为,艾滋病病毒(HIV)感染率为6.4%,新发感染率为5.8/100人年;累计偶然性伴数<10人占63.7%,10~20人者占20.4%,>90人者占4.4%,其余较少;酒吧型/浴室型寻找性伴的15人均为偶然性行为,94.6%的公园型、81.1%的互联网型、81.3%的家庭型性行为是偶然性行为(似然比χ2=15.315,P=0.004);近6个月作为“1”肛交、作为“0”肛交、口交、阴道交每次均使用安全套率为55.0%、50.9%、2.9%、27.1%;多因素分析表明,年龄、自认HIV感染风险、近1年接受过同伴教育、近6个月性伴居住城市数、性伴主要是偶然性伴、有固定性伴侣期间多性伴是偶然性伴数的独立影响因素。结论 MSM人群偶然性行为普遍,数量较多,保护性差,其数量与人口特征、性行为、风险意识和社会网络相关。
Objective To understand the number of coincidental sexual partners and their influential factors in MSM. Methods A follow-up investigation was conducted on the open cohort of MSM population established in Mianyang in 2009, recruiting 405 people and conducting relevant behavioral and serological investigations. Results 83.7% of the respondents had accidental behaviors. The HIV infection rate was 6.4% and the new infection rate was 5.8 / 100 person-years. The cumulative incidental frequency was <10 in 63.7% and 10-20 in 20.4% , While those with> 90 accounted for 4.4% of the total, while the rest were less. Fifteen of the bar / bath-seeking partners were accidental, with 94.6% of park-type, 81.1% of internet-type and 81.3% of family- (Likelihood ratio χ2 = 15.315, P = 0.004). In the past 6 months, the rate of condom use was 55.0% and 50.9% respectively for “anal sex” and “0” anal sex, oral sex and vaginal intercourse. 2.9% and 27.1% respectively. Multivariate analysis showed that age, self-identified HIV infection risk, peer education in the past year, number of cities with partners living in the past 6 months, sexual partners were mainly occasional sexual partners, Sex partners are the independent influential factors of occasional sexual partners. Conclusions The MSM population is more likely to have occasional sexual behaviors, which are more in number and less protective, and their numbers are related to demographic characteristics, sexual behaviors, risk awareness and social networks.