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目的了解黑龙江省四市男男性行为人群(MSM)HIV/梅毒/HCV感染状况及其影响因素,评价行为干预效果,为制定针对性干预策略提供建议。方法应用同伴推动抽样法和分类滚雪球法招募MSM一对一问卷调查,采血检测HIV、梅毒、HCV抗体。梅毒患病的多因素分析采用逐步向前二项Logistic回归分析(α入=0.10,α出=0.15)。结果调查1 353人,1 348人接受检测,HIV感染率2.3%(0.3%~4.5%),梅毒现患率14.8%(5.3%~24.5%),HCV感染率0.5%(0~0.9%)。年龄≥25岁、少数民族、多男性伴行为是梅毒患病的危险因素。结论四市MSM人群的行为干预工作未对艾滋病性病控制产生决定影响,较低的性行为安全水平还不足以影响艾滋病性病的传播,多男性伴行为是目前影响艾滋病性病传播的重要行为危险因素,干预工作的有效性和针对性亟待加强。
Objective To understand the prevalence of HIV / syphilis / HCV infection among men who have sex with men (MSM) and its influential factors in four cities of Heilongjiang Province and to evaluate the effect of behavioral intervention and to provide suggestions for developing targeted intervention strategies. Methods Peer-to-peer sampling and snowballing were used to recruit MSM one-on-one questionnaires. Blood samples were collected to detect HIV, syphilis and HCV antibodies. Multivariate analysis of the prevalence of syphilis used stepwise forward binomial Logistic regression analysis (α = 0.10, α = 0.15). Results A total of 1 353 people were enrolled and 1 348 were tested. The prevalence of HIV infection was 2.3% (0.3% -4.5%), syphilis was 14.8% (5.3% -24.5%) and HCV infection was 0.5% (0-0.9%). Age ≥ 25 years of age, ethnic minorities and many male partners is syphilis risk factors. Conclusion The behavior intervention of MSM in four cities did not affect the control of STDs. The low level of sex security was not enough to affect the spread of STDs. The multi-male partner behaviors were the important behavioral risk factors affecting the STDs transmission. The effectiveness and relevance of the intervention need to be strengthened.