Friedman Samuel R, Bolyard Melissa, Khan Maria, Maslow Carey, Sandoval Milagros, Mateu-Gelabert Pedro, Krauss Beatrice, Aral Sevgi O
National Development and Research Institutes, 71 West 23rd Street, 8th floor, New York, NY 10010, USA.
J Acquir Immune Defic Syndr. 2008 Dec 1;49(4):440-6. doi: 10.1097/qai.0b013e3181893f31.
To describe: (a) the prevalence and individual and network characteristics of group sex events (GSEs) and GSE attendees; and (b) HIV/sexually transmitted infection (STI) discordance among respondents who said they went to a GSE together.
In a sociometric network study of risk partners (defined as sexual partners, persons with whom respondents attended a GSE, or drug injection partners) in Brooklyn, NY, we recruited a high-risk sample of 465 adults. Respondents reported on GSE attendance, the characteristics of GSEs, and their own and others' behaviors at GSEs. Sera and urines were collected, and STI prevalence was assayed.
Of the 465 participants, 36% had attended a GSE in the last year, 26% had sex during the most recent of these GSEs, and 13% had unprotected sex there. Certain subgroups (hard drug users, men who have sex with men, women who have sex with women, and sex workers) were more likely to attend and more likely to engage in risk behaviors at these events. Among 90 GSE dyads, in which at least 1 partner named the other as someone with whom they attended a GSE in the previous 3 months, STI/HIV discordance was common [herpes simplex virus (HSV-2): 45% of dyads, HIV: 12% of dyads, and chlamydia: 21% of dyads]. Many GSEs had 10 or more participants, and multiple partnerships at GSEs were common. High attendance rates at GSEs among members of large networks may increase community vulnerability to STI/HIV, particularly because network data show that almost all members ofa large sociometric risk network either had sex with a GSE attendee or had sex with someone who had sex with a GSE attended.
Self-reported GSE attendance and participation were common among this high-risk sample. STI/HIV discordance among GSE attendees was high, highlighting the potential transmission risk associated with GSEs. Research on sexual behaviors should incorporate measures of GSE behaviors as standard research protocol. Interventions should be developed to reduce transmission at GSEs.
描述：(a) 群交事件（GSEs）及GSE参与者的患病率、个体特征和网络特征；(b) 表示一起参加过GSE的受访者中的艾滋病毒/性传播感染（STI）不一致情况。
在纽约布鲁克林对风险伙伴（定义为性伴侣、与受访者一起参加GSE的人或注射毒品伙伴）进行的社会计量网络研究中，我们招募了465名高危成年人样本。受访者报告了参加GSE的情况、GSE的特征以及他们自己和他人在GSE上的行为。采集了血清和尿液，并检测了STI患病率。
在465名参与者中，36%的人在过去一年中参加过GSE，26%的人在最近一次GSE期间有过性行为，13%的人在那里有无保护性行为。某些亚组（硬性毒品使用者、男男性行为者、女女性行为者和性工作者）更有可能参加这些活动，并且在这些活动中更有可能从事危险行为。在90对GSE对偶中，其中至少有1名伴侣在前3个月内将对方列为与自己一起参加GSE的人，STI/艾滋病毒不一致情况很常见[单纯疱疹病毒（HSV-2）：45%的对偶，艾滋病毒：12%的对偶，衣原体：21%的对偶]。许多GSE有10名或更多参与者，GSE上的多重伙伴关系很常见。大型网络成员中GSE的高参与率可能会增加社区对STI/艾滋病毒的易感性，特别是因为网络数据显示，大型社会计量风险网络的几乎所有成员要么与GSE参与者发生过性行为，要么与与GSE参与者发生过性行为的人发生过性行为。
在这个高危样本中，自我报告的GSE参与情况很常见。GSE参与者中的STI/艾滋病毒不一致情况很高，突出了与GSE相关的潜在传播风险。性行为研究应将GSE行为的测量纳入标准研究方案。应制定干预措施以减少GSE中的传播。
