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目的了解广东省深圳地区男男性行为人群(MSM)的并行性多性伴的特征,分析其影响因素。方法采用同伴推动抽样方法进行抽样调查,收集MSM人口学、HIV知识、风险感知、安全套使用及并行性多性伴行为等资料。应用RDSAT 5.6和SAS 9.2软件进行统计分析。结果共访谈351名MSM。最近6个月内,208人(59.3%)有并行性多性伴,其中60.6%仅有男性性伴,39.4%有双性性伴。与无并行性多性伴的MSM相比,有并行性多性伴的MSM多在娱乐场所工作,艾滋病知识水平较低,最近6个月不使用安全套的比例较高;与仅有男性并行性多性伴的MSM相比,有双性并行性多性伴的MSM年龄较大。多因素Logistic回归分析结果表明,HIV知识得分越高,MSM发生并行性多性伴行为的风险越小。结论相当比例的MSM有并行性多性伴行为,应制订有针对性的干预计划,以阻断艾滋病病毒(HIV)由MSM向普通人群传播。
Objective To understand the characteristics of multiple sexual partners with MSM in Shenzhen, Guangdong Province, and to analyze the influencing factors. Methods A sample survey was conducted with peer-driven sampling methods to collect data on MSM demography, HIV knowledge, risk perception, condom use and multiple sexual partners. Apply RDSAT 5.6 and SAS 9.2 software for statistical analysis. Results A total of 351 MSM were interviewed. In the last 6 months, 208 (59.3%) had multiple sexual partners, of whom 60.6% had only male partners and 39.4% had bilateral partners. Compared with non-parallel multi-partner MSM, MSM with multiple sexual partners mostly worked in entertainment venues, with a lower level of AIDS knowledge and a higher proportion of non-condom use in the past 6 months; with male-only parallelism Compared to MSM with multiple sexual partners, MSM with multiple sexual partners with multiple sexual partners was older. Multivariate Logistic regression analysis showed that the higher the HIV knowledge score, the lower the risk of MSM with multiple sexual partners. Conclusions A significant proportion of MSM have multiple sexual partners with parallelism. Targeted intervention programs should be developed to block the transmission of HIV from the MSM to the general population.