Characteristics of sexual behavior and factors affecting unprotected analsex among MSM in Mianyang city, 2017
WANG Yi1, ZHOU Wan-ming1, FAN Jing2, ZHAO Xi-he1, WANG Xiao-li3, DU Chan-juan4, LIU Jiang5, YANG Gan-jin6, LI Wei7, JIA Xiu-wei8, TAN Qin9, TIE Ying-wei10, REN Yan-fei11, LIAO Ping12
1.Mianyang Municipal Center for Disease Control and Prevention, Mianyang, Sichuan 621000, China; 2.Mianyang Gay Community Organization, Mianyang, Sichuan 621000, China; 3.Fucheng District Center for Disease Control and Prevention, Mianyang, Sichuan 621000, China; 4.Youxian District Center for Disease Control and Prevention, Mianyang, Sichuan 621000, China; 5.Jiangyou Municipal Center for Disease Control and Prevention, Jiangyou, Sichuan 621700, China; 6.Santai County Center for Disease Control and Prevention, Santai, Sichuan 621100, China; 7.Anzhou District Center for Disease Control and Prevention, Mianyang, Sichuan 622650, China; 8.Beichuan Qiang Autonomous County Center for Disease Control and Prevention, Beichuan, Sichuan 622750, China; 9.Gaoxin District Center for Disease Control and Prevention, Mianyang, Sichuan 621000, China; 10. Zitong County Center for Disease Control and Prevention, Zitong, Sichuan 622150, China; 11.Yanting County Center for Disease Control and Prevention, Yanting, Sichuan 621600, China; 12.Pingwu County Center for Disease Control and Prevention, Pingwu, Sichuan 622500, China
摘要目的 了解男男性行为者(men who have sex with men ,MSM)性行为特征,分析无保护措施肛交影响因素。 方法 2017年1—10月,在四川省绵阳市采用滚雪球抽样法,进行MSM行为学及血清学的横断面抽样调查,用χ2检验、Logistic回归模型进行无保护措施肛交影响因素的单因素及多因素分析。 结果 回收有效问卷1 242份,近6个月肛交91.6%,其中71.4%有保护措施。近6个月商业性行为1.7%,其中31.6%有保护措施。近6个月异性性行为9.7%,其中30.8%有保护措施。近6个月高频率肛交24.5%,多性伴50.3%。近6个月肛交无保护措施的艾滋病病毒阳性率10.5%,高于有保护措施的1.8%(χ2=41.837,P＜0.001)。多因素分析结果,年龄＞30岁(OR=1.627,95%CI: 1.192～2.221)、使用Rush(OR=2.122, 95%CI:1.293～3.482)者近6个月无保护措施肛交可能性更大,高中及以上文化(OR=0.401,95%CI:0.269～0.600)、艾滋病防治知识全对(OR=0.639, 95%CI:0.428～0.954)、近1年接受预防服务(OR=0.537,95%CI:0.312～0.923)、近6个月多性伴(OR=0.635, 95%CI:0.480～0.841)者近6个月无保护措施肛交可能性更小。 结论 MSM性行为复杂,无保护、多性伴普遍,大年龄、低文化、艾滋病防治知识不全对、未接受预防服务者发生无保护措施肛交的风险较大,应针对性开展行为干预。
Abstract：Objective To understand the characteristics of sexual behavior among men who have sex with men (MSM), and to analyze the factors affecting unprotected anal sex. Methods Based on snowball sampling method, a cross-sectional sampling survey of MSM behavior and serology was conducted in Mianyang city, Sichuan province from January to October in 2017. Chi-square test and Logistic regression model were used to analyze the single factor and multiple factors of unprotected anal sex. Results A total of 1,242 valid questionnaires were recovered. 91.6% of MSM had anal sex in the last six months, of which 71.4% adopted protective measures. 1.7% of MSM had commercial sex behavior in the last six months, of which 31.6% adopted protective measures. 9.7% of MSM had engaged in heterosexual behavior in the last six months, of which 30.8% adopted protective measures. 24.5% of MSM had a high frequency of anal sex in the last six months, and 50.3% had multiple sex partners. The positive rate of HIV was higher in MSM with unprotected anal sex in the last six months than those with protected anal intercourse (10.5% vs. 1.8%, χ2=41.837, P<0.001). Multivariate analysis showed that MSM aged above 30 years (OR=1.627, 95%CI:1.192-2.221) and MSM with rush poppers use (OR=2.122, 95%CI:1.293-3.482) were more likely to have unprotected anal sex in the last six months, while MSM with high school or above education background (OR=0.401, 95%CI:0.269-0.600), MSM with correct HIV/AIDS prevention and treatment knowledge (OR=0.639, 95%CI:0.428-0.954), MSM with preventive services in recent one year (OR=0.537, 95%CI:0.312-0.923) and MSM with multiple sex partners in the last six months (OR=0.635, 95%CI:0.480-0.841) were less likely to have unprotected anal sex in the last six months. Conclusions MSM’s sexual behavior is complex, and the risk of occurring unprotected anal sex is found to be higher in MSM without protection measures, MSM with multiple sex partners, MSM aged above 30 years, MSM with poor educational background, MSM with inadequate HIV/AIDS prevention and treatment knowledge and MSM without preventive services; and hence, behavioral interventions should be targeted.
王毅, 周万明, 樊静, 赵西和, 王晓丽, 杜婵娟, 刘江, 杨干金, 李伟, 贾秀伟, 谭琴, 帖映伟, 任延飞, 廖平. 绵阳市2017年男男性行为者性行为特征及无保护措施肛交影响因素[J]. 实用预防医学, 2019, 26(12): 1412-1415.
WANG Yi, ZHOU Wan-ming, FAN Jing, ZHAO Xi-he, WANG Xiao-li, DU Chan-juan, LIU Jiang, YANG Gan-jin, LI Wei, JIA Xiu-wei, TAN Qin, TIE Ying-wei, REN Yan-fei, LIAO Ping. Characteristics of sexual behavior and factors affecting unprotected analsex among MSM in Mianyang city, 2017. , 2019, 26(12): 1412-1415.
2019, Vol. 26 
