北京市200名HIV阳性男大学生性取向和性行为特征

  目的  了解北京市HIV阳性男性大学生的性取向及其与HIV感染者的相关性行为特征，为制定学生人群的性健康教育和艾滋病防控策略提出建议。  方法  招募北京地区2016年至2019年6月30日确诊HIV感染的200名男性大学生，利用问卷回顾性调查HIV感染前的性取向和性行为特征，对比分析绝对同性性行为取向者与其他性取向者的差异。  结果  男性大学生HIV感染者首次确诊时平均年龄为(22.18±2.70)岁，61.5%(123名)处于本科阶段，69.5%(139名)为外地户籍，38.5%(77名)感染前性伴来源于网聊约见的人，83.0%(166名)发生过同性性行为。性取向自我评分显示，50.0%为绝对同性性行为者，绝对同性性行为组确认HIV感染时的平均年龄低于其他性行为取向组, 差异有统计学意义(t=2.77，P=0.01)，Rush的使用率、首次插入性行为对象为男性、18岁前发生首次同性性行为、同性性伴数>3人、未坚持使用安全套、有固定性伴、同性性行为频率多于每月1次比例均高于其他性行为取向者(χ2值分别为5.15，28.06，4.16，5.34，5.89，7.39，6.68，P值均 < 0.05)。绝对同性性行为组中Rush使用者性病的确诊比例高于不使用Rush者(χ2=6.26，P=0.01)。  结论  男性大学生HIV感染者中绝对同性性行为者高危性行为比例高于其他性取向者。学校和家庭需要关注学生的性健康教育，利用网络传媒加强健康宣传，提高大学生群体对艾滋病的警觉性。

Sexual orientation and characteristics of sexual behaviors among 200 HIV-positive male college students in Beijing

  Objective  To understand sexual orientation and characteristics of sexual behaviors related with HIV infection among HIV-positive male college students in Beijing and to provide suggestions for development of sexual health education and HIV prevention strategy for student population.  Methods  HIV-positive male college students diagnosed from 2016 to June 30, 2019 in Beijing were recruited. Questionnaire was used to retrospectively investigate sexual orientation and characteristics of sexual behaviors before HIV infection. Behaviors related to HIV infection were compared between absolutely homosexual and others sexual orientation.  Results  The average age of male students firstly identified to be HIV positive was (22.18±2.70) years old, 61.5%(123) of them were undergraduate, 69.5%(139) were not registered permanent residency in Beijing, 38.5%(77) of their interviewed sexual partners were from online chat and 83.0%(166) had homosexual behaviors. Sexual orientation score analysis showed that 50.0% of the participants self-identified as exclusively homosexual. Compared with other sexual oriental group, exclusively homosexual group had lower mean age of their HIV infection firstly identified(t=2.77, P=0.01), higher rate of Rush use, firstly insertive sexual behavior with male, firstly insertive sexual behavior before 18 years old, sexual partners more than three persons, having regular partners, nonpersistent use of condom, being diagnosed of sexual transmitted disease and the frequency of homosexual behaviors more than 1 time per month (χ2=5.15, 28.06, 4.16, 5.34, 5.89, 7.39, 6.68, P < 0.05). Rush users had higher rate of STD diagnosis than non-users in exclusively homosexual group (χ2=6.26, P=0.01).  Conclusion  Risky sexual behaviors associated with HIV infection were higher in exclusively homosexual group then other sexual orientation groups among HIV-positive male college students. Family and school should concern with sexual health education byreinforcing health education via network media to improve college students' awarenees on HIV/AIDS.