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目的了解兰州市男男性接触人群(MSM)性行为特征、人类免疫缺陷病毒(HIV)和梅毒感染状况以及影响因素,为制定本市MSM人群艾滋病(AIDS)干预策略提供依据。方法招募MSM志愿者,采用“滚雪球”的方法于2006-2013年对本市MSM进行一对一问卷调查并进行血清学检测,使用EpiData 3.1软件录入数据,SPSS 16.0软件进行数据整理和统计分析。结果本研究共调查2 090人,检出HIV阳性者93例,感染率为4.45%,梅毒阳性者264例,感染率为12.63%;连续8年的MSM人群的HIV感染率经χ2检验(χ2=30.149,P<0.05),差异有统计学意义;连续8年的MSM人群的梅毒感染率经χ2检验(χ2=92.406,P<0.05),差异有统计学意义。86.36%(1 805/2 090)的MSM最近6个月发生过同性性行为,安全套坚持使用率为43.55%(786/1 805);26.60%(556/2 090)的MSM最近6个月发生过异性性行为,安全套坚持使用率为34.89%(194/556);6.04%(109/1 805)的MSM最近6个月发生过商业同性性行为,安全套坚持使用率为56.88%(62/109)。结论兰州市MSM艾滋病知晓率较高,高危性行为比较严重,HIV和梅毒感染率较高,应该加强该人群高危性行为的干预。
Objective To understand the sexual behaviors, HIV and syphilis infection status and its influencing factors in MSM in Lanzhou, and to provide basis for the development of MSM population’s AIDS intervention strategy in Lanzhou. Methods MSM volunteers were enrolled in this study. One-on-one questionnaires and serological tests were performed on MSM from 2006 to 2013 in Snowball using the “Snowball” method. EpiData 3.1 software was used to input data and SPSS 16.0 software was used to analyze the data. . Results A total of 2 090 people were investigated in this study. 93 HIV-positive cases were detected, the infection rate was 4.45%, the syphilis positive rate was 264 cases, the infection rate was 12.63%. The HIV infection rate of 8 consecutive MSM population was determined by χ2 test (χ2 = 30.149, P <0.05), and the difference was statistically significant. The infection rate of syphilis in MSM for 8 consecutive years was significantly higher than that of the control group (χ2 = 92.406, P <0.05). MSM of 86.36% (1805/2 090) had homosexual behavior in the past 6 months, with condom use up to 43.55% (786/1 805); 26.60% (556/2 090) of MSM occurred in the past 6 months (54.89% (194/556)), MSM (6.04% (109/1805)) had the same-sex business in the past 6 months, and the condom use rate was 56.88% (62/109 ). Conclusion There is a high awareness rate of MSM AIDS in Lanzhou, high-risk sexual behavior is more serious, and the infection rate of HIV and syphilis is higher, we should strengthen the intervention of high-risk sexual behavior in this population.