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目的了解浦东新区新发现感染艾滋病病毒(HIV)的男男性行为人群(MSM)的双性性行为特征,评估艾滋病的传播风险,为制定针对性的干预措施、阻止艾滋病由MSM向一般人群扩散提供工作决策依据与思路。方法采用横断面调查的方法,对2012年9月至2014年2月,在浦东新区新发现的感染HIV的MSM进行问卷调查,内容包括一般社会人口学信息、最近6个月的性行为及安全套使用情况、性伴的类型和寻找性伴的方式等。结果共完成调查127人,65.4%(83人)的调查对象认为自己是男男同性恋,34.6%(44人)认为自己是双性恋。80.3%(102人)的调查对象表示最近6个月与男性有过同性性行为,与同性的每次安全套使用率为7.8%(8/102);22.8%(29人)的调查对象表示最近6个月与女性有过异性性行为,与异性的每次安全套使用率为20.7%(6/29)。单因素分析结果显示,双性恋性取向(χ2=21.74,P<0.01)和婚姻状态(χ2=31.99,P<0.01),是调查对象与异性发生性行为的主要影响因素。结论浦东新区新发现感染HIV的MSM中,有不安全的双性性行为发生,存在传播的风险,应针对性地采取干预措施,阻止艾滋病向一般人群扩散。
Objective To understand the bisexual behavior characteristics of newly discovered MSM in Pudong New Area and to assess the risk of transmission of AIDS and to provide targeted interventions to prevent the spread of AIDS from the MSM to the general population Work decision-making basis and ideas. Methods A cross-sectional survey was conducted to investigate the newly discovered HIV-infected MSM in Pudong New Area from September 2012 to February 2014. The survey included general socio-demographic information, sexual behaviors and condom in the past 6 months Usage, the type of partner and the way to find partners. Results A total of 127 people were surveyed, 65.4% (83) of the respondents consider themselves gay men and 34.6% (44) consider themselves bisexual. 80.3% (102) of the respondents said they had had same-sex behavior with men in the recent 6 months and 7.8% (8/102) with condom use; and 22.8% (29) said recently 6 months had heterosexual behavior with females and 20.7% (6/29) with condoms per sex. Univariate analysis showed that bisexual sexual orientation (χ2 = 21.74, P <0.01) and marital status (χ2 = 31.99, P <0.01) were the main influencing factors in the surveyed and heterosexual sex behaviors. Conclusion In MSM of newly discovered HIV in Pudong New Area, unsafe bisexual behaviors occur and there is a risk of transmission. Interventions should be targeted to prevent the spread of AIDS to the general population.