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目的了解太原市男男性行为人群(mem who have sex with men,MSM)行为特征、艾滋病防治知识知晓率、艾滋病/梅毒/丙型病毒性肝炎(丙肝)感染状况及影响因素。方法 2013年3-8月对MSM人群进行问卷调查,了解其人口学特征、性行为及性经历、性伴类型及数量、艾滋病相关知识、接受行为干预等内容,采集血样进行HIV、梅毒及丙肝抗体检测。采用χ2检验和logistic回归模型对感染HIV的影响因素进行分析。结果 255名符合标准的MSM参加了调查,自认同性恋占54.12%,双性恋占43.14%;首个性伴是男性占70.98%、女性占29.02%;与同性发生性行为时主动、被动肛交都做占45.88%;有固定性伴占55.29%,无44.71%;近6个月发生性行为,同性占85.49%,同性商业性行为占5.96%,异性占21.57%,性伴中位数为2人(1~200人),寻求男性性伴网络占71.56%,与不同性伴安全套使用率低下。HIV感染率为18.90%、梅毒7.48%、丙肝0.72%、HIV与梅毒合并感染2.36%。知识知晓率为91.76%。Logistic回归多因素分析显示,HIV感染与以下因素有关联:年龄﹥25岁(OR=3.04,95%CI:1.52~6.08),在本地居住时间2年以上(OR=0.76,95%CI:0.62~0.94),有性病感染(OR=3.818,95%CI:1.11~15.02)。结论 MSM人群属于性活跃人群,拥有性伴类型复杂多样,高危行为发生率高,使HIV及性病在该人群中广泛传播,加大对该人群的干预力度,减低高危行为,提高安全套的使用率,降低HIV在MSM人群中的传播。
Objective To investigate the behavioral characteristics, awareness of HIV / AIDS prevention and control, AIDS / syphilis / hepatitis C infection and its influencing factors in Taiyuan MSM population. Methods From March to August 2013, a questionnaire survey was conducted on MSM population to understand demographic characteristics, sexual behaviors and sexual experiences, types and numbers of sexual partners, AIDS-related knowledge and behavioral interventions. Blood samples were collected for HIV, syphilis and hepatitis C Antibody detection. Χ2 test and logistic regression model were used to analyze the influencing factors of HIV infection. Results A total of 255 eligible MSMs participated in the survey, accounting for 54.12% of homosexuals and 43.14% of bisexuals. The first sexual partners were male, 70.98% and female, accounting for 29.02%. The active and passive anal sex Accounting for 45.88%; with fixed sex accounted for 55.29%, no 44.71%; nearly 6 months of sexual intercourse, homosexual accounted for 85.49%, same-sex commercial sex accounted for 5.96%, heterosexual accounted for 21.57%, median sexual partner 2 People (1 ~ 200), seeking male partner network accounted for 71.56%, with different partners with low condom use. HIV infection rate was 18.90%, syphilis 7.48%, hepatitis C 0.72%, HIV and syphilis combined infection 2.36%. The rate of knowledge is 91.76%. Logistic regression multivariate analysis showed that HIV infection was associated with more than 2 years of age (OR = 0.76, 95% CI: 0.62, OR = 3.04, 95% CI: 1.52 to 6.08) ~ 0.94), with STD infection (OR = 3.818, 95% CI: 1.11 ~ 15.02). Conclusions The MSM population belongs to the sexually active population, with complicated and diverse sexual partners, high incidence of high-risk behaviors, wide spread of HIV and sexually transmitted diseases in this population, increasing intervention in this population, reducing high-risk behaviors and increasing the rate of condom use , Reduce the spread of HIV in MSM populations.