武汉市年轻男男性行为者偶遇性行为及相关因素分析

目的 了解年轻男男性行为人群（YMSM）偶遇性行为及相关危险行为状况，并分析影响偶遇性行为的因素，为降低该人群感染和传播艾滋病的风险提出针对性的措施。方法 2013年5－11月在武汉市通过互联网宣传、外展活动的组织以及艾滋病自愿咨询检测服务招募年龄≤25岁的YMSM参加匿名式问卷调查，招募403名YMSM，收集其人口学、性行为等相关信息，分析YMSM偶遇性行为的相关因素。结果 实际调查398名YMSM中，48.99%（195/398）报告最近6个月发生过偶遇性行为。与未报告偶遇性行为的YMSM比较，报告偶遇性行为的YMSM肛交、口交坚持使用安全套的比例均较低［34.29%（60/175）比49.08%（80/163）（χ²=7.61，P=0.01）、38.85%（61/157）比28.65%（49/171）（χ²=3.82，P=0.05）］。报告偶遇性行为的YMSM中，多性伴的比例高于未报告偶遇性行为的YMSM［76.80%（149/194）比33.15%（60/181）（χ²=77.36，P<0.01）］。多因素logistic回归分析显示，经常使用互联网、存在吸毒行为是YMSM发生偶遇性行为的影响因素（OR=4.89，95% CI：1.90～12.54；OR=2.72，95% CI：1.60～4.63）。结论 YMSM有过偶遇性行为者更容易发生无保护性行为和多性伴等高危行为，应加强互联网针对YMSM的行为干预。

One-night-stand behavior and associated factors among young men who have sex with men in Wuhan, China

Objective This present study was to examine the prevalence and determinants of one-night-stand behavior among young men who have sex with men (YMSM). Methods A total of 403 YMSM aged 16 to 25 were recruited through internet promotion, extending activity and HIV VCT in Wuhan. Data was gathered through anonymous questionnaire. Binary logistic regression was used to examine factors associated with one-night-stand behavior. Results Of the 398 YMSM, 48.99% (195/398) reported having had casual sex in the last 6 months. Of the ones having had casual sex, 34.29% (60/175) and 28.65% (49/171) reported using condoms consistently during anal or oral sexual contacts, respectively. These figures were lower than those of YMSM not having casual sexual contactswith anal sex as 49.08% (80/163) and oral sex as 38.85% (61/157)]. 76.80% (149/194) of the YMSM reported having had multiple sexual partners, with the figure higher than those without33.15% (60/181)] (P<0.01). Results from the logistic regression analysis showed that the following factors seemed to be associated with casual sex activities among YMSM, including:often using internet, (OR=4.89, 95%CI:1.90-12.54), taking illegal drugs (OR=2.72, 95%CI:1.60-4.63). Conclusions YMSM who had engaged in casual sex, practicing unprotected sex or having multiple sexual partners, were recognized as high risk population. Targeted intervention programs are needed to decrease the one-night-stand behavior. Internet intervention strategy seemed an important method to serve the purpose.