The Kirby Institute, University of New South Wales, CFI Building, Corner West and Boundary Streets, Darlinghurst, Sydney, NSW 2010, Australia.
Int J Infect Dis. 2012 May;16(5):e312-20. doi: 10.1016/j.ijid.2012.01.012. Epub 2012 Mar 20.
HIV prevalence among men who have sex with men (MSM) in China is rapidly increasing. The majority of Chinese MSM engage in bisexual behaviors and their female partners may be at high risk of HIV infection.
Through a comprehensive literature review and the utilization of a mathematical optimization approach, this study infers quantitative distributions of sexual behavioral practices between Chinese MSM and their female partners over the past decade, and consequently estimates the trends in HIV incidence rates among female partners of Chinese MSM.
The average Chinese MSM had approximately 0.89 (95% confidence interval (CI) 0.68-1.23) female sexual partners, with a mean number of total penetrative acts with the female partners of 0.57 (95% CI 0.52-0.62), in the past 6 months. Condom usage increased slightly from 23.57% (95% CI 14.20-32.93%) in 2002 to 27.33% (95% CI 19.88-34.78%) in 2010. Thus, the substantially increasing HIV prevalence among MSM has led to an increase in HIV incidence among partners of bisexual MSM of approximately 5.3-fold, from 0.18 per 1000 person-years in 2002 to 0.88 per 1000 person-years in 2010.
Bisexual Chinese MSM may be a bridge group to the general female population for HIV transmission. There has been a substantial HIV incidence increase among their female partners.
中国男男性行为者（MSM）中的艾滋病毒感染率正在迅速上升。大多数中国 MSM 从事双性恋行为，他们的女性伴侣可能面临高感染艾滋病毒的风险。
通过全面的文献回顾和数学优化方法，本研究推断了过去十年中中国 MSM 与女性伴侣之间性行为实践的定量分布，并据此估计了中国 MSM 女性伴侣中艾滋病毒感染率的趋势。
平均而言，中国 MSM 在过去 6 个月内约有 0.89 名（95%置信区间 0.68-1.23）女性性伴侣，与女性性伴侣的总插入性行为平均次数为 0.57 次（95%置信区间 0.52-0.62）。避孕套的使用率从 2002 年的 23.57%（95%置信区间 14.20-32.93%）略有上升至 2010 年的 27.33%（95%置信区间 19.88-34.78%）。因此，MSM 中艾滋病毒感染率的大幅上升导致双性恋 MSM 伴侣的艾滋病毒感染率增加了约 5.3 倍，从 2002 年的每 1000 人年 0.18 例增加到 2010 年的每 1000 人年 0.88 例。
双性恋中国 MSM 可能是艾滋病毒向普通女性人群传播的桥梁群体。他们的女性伴侣艾滋病毒感染率大幅上升。
