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目的了解天津市2008-2011年男男性行为人群(MSM)艾滋病病毒(HIV)的流行趋势,为在该人群中开展相关控制措施提供依据。方法分析2008-2011年天津市监测中新发现的MSM中的HIV/艾滋病(AIDS)病例情况、MSM人群血清学监测的数据以及横断面调查数据。结果新发现HIV/AIDS病例中,MSM病例所占比例最高,2008-2011年病例报告显示的构成比及报告数量增长最快的传播途径是男男性传播。MSM病例中流动人口占53.3%,未婚占61.0%,高中及以上文化程度占69.6%,15～29岁占47.2%。无偿献血及自愿咨询和检测发现的阳性病例中,MSM所占的比例最高。血清学监测结果显示,天津市MSM人群HIV感染率维持在稳定水平。横断面调查结果显示,MSM近6个月发生同性性行为时每次都使用安全套构成的中位数为35.85%,近6个月中最近1次发生同性性行为时安全套使用率中位数为59.55%,近6个月与异性发生性行为比例的中位数为18.05%,梅毒检出的中位数为18.25%,HIV检出的中位数为6.25%。结论 MSM人群为天津市HIV/AIDS感染的主要人群,艾滋病流行趋势严重,危险行为普遍存在,急需采取有效措施控制HIV通过其传播及扩散。
Objective To understand the prevalence of HIV in men who have sex with men (MSM) in Tianjin from 2008 to 2011 and provide the basis for carrying out relevant control measures in this population. Methods The HIV / AIDS (AIDS) cases in newly detected MSM in Tianjin during 2008-2011, the serological surveillance data of MSM population and the cross-sectional survey data were analyzed. Results Among the newly discovered cases of HIV / AIDS, MSM cases accounted for the highest proportion. The proportions of cases reported in 2008-2011 and the fastest-growing route of transmission were MSM. Among the MSM cases, floating population accounted for 53.3%, unmarried 61.0%, high school education and above 69.6%, and 15-29 years old 47.2%. Among the positive cases found in voluntary blood donation and voluntary counseling and testing, MSM accounts for the highest proportion. Serological surveillance showed that HIV prevalence among MSM population in Tianjin remained at a stable level. The cross-sectional survey showed that the median of condom use was 35.85% when MSM occurred homosexual behavior in the past 6 months and the median condom use rate in the last 6 months was 59.55%. The median proportion of sexual behaviors with heterosexual people in the past 6 months was 18.05%, the median of syphilis was 18.25%, and the median of HIV was 6.25%. Conclusion The MSM population is the main HIV / AIDS infection in Tianjin. The HIV / AIDS epidemic trend is serious and dangerous behavior is prevalent. Therefore, it is urgent to take effective measures to control the spread and spread of HIV through it.