Shi Tong-Xin, Yu Zeng-Zhao, Li Xiu-Fang, Xu Jing-Xing, Wang Yan-Fei, Zhang Bei-Chuan
Department of Dermatology, Qingdao Municipal Hospital, Qingdao 266001, China.
Zhonghua Liu Xing Bing Xue Za Zhi. 2010 Nov;31(11):1223-6.
To investigate the AIDS-related high risk behaviors of men who have sex with men (MSM) who ever exchanged money for the same sex.
Target sampling for cross-sectional study and valid anonymous questionnaires were adopted to compare the differences of AIDS-related high risk behaviors between MSM with the experience of exchanging money for the same sex and those without that experience. 1959 rstadied samples were recruited in nine cities. SPSS 13.0 was used and t, χ(2) and Mann-Whitney tests were taken for statistical analysis.
Compared to corresponding ones without "buying" the same sex experience, MSM who ever engaged in "buying" sex had the characteristics of being prone to in marriage and living in larger cities with older age and higher income (P < 0.01). They also had a significant larger number in the following events: total sexual partners, anal sex and oral sex episodes with same sex, number of sexual partners, anal sex and oral sex in the previous six months, with the figure of median 50.0, 20.0, 20.0, 5.0, 4.0, 5.0 respectively. 31.5% had ever participated in 'group sex', 48.0% had sex with male partners away from his own region in the previous year, 70.5% had sexual intercourse with strangers at MSM avenues in the last six months. The OR (95%CI) values were 2.288 (1.702 - 3.077), 3.231 (2.462 - 4.241), 2.840 (2.140 - 3.770). All the above mentioned figures were higher than those without the experience, with significant differences. They had a significant lower rate of 45.7% of condom use while having sex with female partners (P < 0.05).
MSM with the experience of exchanging money for the same sex would have more AIDS-related high risk behaviors, AIDS preventative measures should be taken to target different subgroups.
调查有过同性性交易行为的男男性行为者（MSM）的艾滋病相关高危行为。
采用目标抽样进行横断面研究，采用有效的匿名问卷比较有过同性性交易经历的MSM与无此经历的MSM在艾滋病相关高危行为方面的差异。在9个城市招募了1959名研究样本。使用SPSS 13.0软件，采用t检验、χ²检验和曼-惠特尼检验进行统计分析。
与没有“购买”同性性经历的MSM相比，有过“购买”性行为的MSM具有以下特点：更倾向于已婚，居住在大城市，年龄较大，收入较高（P < 0.01）。他们在以下方面的数量也显著更多：性伴侣总数、与同性的肛交和口交次数、性伴侣数量、前六个月的肛交和口交次数，中位数分别为50.0、20.0、20.0、5.0、4.0、5.0。31.5%的人曾参与过“群交”，48.0%的人在过去一年与来自自己所在地区以外的男性性伴发生过性行为，70.5%的人在过去六个月在男男性行为场所与陌生人发生过性行为。OR（95%CI）值分别为2.288（1.702 - 3.077）、3.231（2.462 - 4.241）、2.840（2.140 - 3.770）。上述所有数据均高于无此经历者，差异有统计学意义。他们与女性性伴发生性行为时使用避孕套的比例显著较低，为45.7%（P < 0.05）。
有过同性性交易经历的MSM有更多艾滋病相关高危行为，应针对不同亚组采取艾滋病预防措施。
