四川省绵阳市年轻男男性行为者偶遇性伴及关联因素分析

目的 了解年轻男男性行为者（young men who have sex with men, YMSM）偶遇性伴现状,分析关联因素。方法 2016年9月—2019年9月用“滚雪球”抽样法,对绵阳市YMSM偶遇性伴现状进行问卷调查和人类免疫缺陷病毒（HIV）、梅毒血清学检测,用χ²检验,多因素二分类Logistics回归分析偶遇性伴的关联因素。结果 共调查351人,最近6个月有肛交250人,其中有偶遇性伴者112人,占44.8%（112/250）,平均性伴（1.9±1.6）人,每次使用安全套者92人。最近6个月有无偶遇性伴者HIV、梅毒阳性率差异均无统计学意义（P>0.05）。多因素分析发现,性角色均可（OR=2.921,95%CI：1.079~4.864）、最近6个月多性伴（OR=9.424,95%CI：4.494~19.762）、最近6个月群交（OR=25.537,95%CI：2.098~310.891）、自我接纳得分越高（OR=1.627,95%CI：1.104~2.398）者有偶遇性伴的可能更大,最近6个月有固定性伴者（OR=0.082,95%CI：0.035~0.188）有偶遇性伴的可能更小（P<0.05）。结论 YMSM偶遇性伴普遍,其偶遇性伴与性角色、性行为和自我接纳相关联,行为风险较大,应针对性开展行为干预。

Encounter of sexual partners and associated factors in young men who have sex with men in Mianyang,Sichuan

Objective To investigate the status of accidental sexual partners among young men who have sex with men (YMSM), and analyze the related factors. Methods “Snowball” sampling method was used to conduct a questionnaire survey of encounter partners and serological detection of human immunodeficiency virus (HIV) and syphilis among YMSM of Mianyang city from September 2016 to September 2019. Chi-square test and Logistics regression model were used to analyze the associated factors of encounter partners. Results A total of 351 people were surveyed, 250 cases had anal sex in the last 6 months, 44.8% (112/250) had chance sexual partners, with an average of (1.9±1.6), and 92 cases used condoms every time. There was no statistically significant difference in the positive rates of HIV and syphilis between those with and without accidental partners in the last 6 months (all P>0.05). The multivariate analysis found that those who played both sexual roles (OR=2.921,95%CI1.079-4.864), had multiple sexual partners in the last 6 months (OR=9.424,95%CI4.494-19.762), had group sex in the last 6 months (OR=25.537,95%CI2.098-310.891) and had the higher score of self-acceptance (OR=1.627,95%CI1.104-2.398) were more likely to have a chance partner, and those with a fixed partner in the last 6 months (OR=0.082,95%CI0.035-0.188) were less likely to have a chance partner (all P<0.05). Conclusions YMSM encounter partners are common, and their encounter partners are associated with sexual role, sexual behavior and self-acceptance. The risk of behavior is high, so behavioral intervention should be carried out accordingly.