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目的了解进城务工人员男男性行为人群(man who has sex with men,MSM)HIV感染率及相关危险行为特征,为开展有针对性的干预工作提供科学建议。方法通过同伴推荐的方法招募调查对象进行面对面的问卷调查并采血检测HIV与梅毒,描述性分析HIV感染率及相关行为特征,通过多因素Logistic回归分析鉴别HIV感染的独立影响因素。结果共计招募调查进城务工人员MSM 140人,年龄(35.1±9.7)岁,艾滋病知识知晓率为72.9%,过去1年接受干预服务的比例低于50%。最近6个月与男性发生肛交的比例为87.9%,最近6个月与男性发生肛交时每次都使用安全套的比例为29.3%。最近6个月与女性发生性行为的比例为41.4%,最近6个月与女性发生性行为时每次都使用安全套的比例为10.3%。HIV与梅毒感染率分别为20.7%与9.3%。多因素回归分析结果提示年龄(OR=3.02,95%CI:1.63～5.59)、过去1年接受过免费的安全套发放(OR=0.22,95%CI:0.09～0.57)、梅毒感染(OR=4.12,95%CI:1.06～15.96)是HIV感染率的独立影响因素。结论进城务工人员MSM人群艾滋病防治知识知晓率低、接受干预服务的比例低、与女性发生性行为的比例较高、安全套使用率低、HIV与梅毒感染率高,提示HIV将在该人群中加速传播,因其双性性行为,将促进HIV由MSM人群向普通人群传播。
Objective To understand the prevalence of HIV infection and related risk behaviors among migrant workers who have sex with men (MSM) and provide scientific advice for carrying out targeted interventions. METHODS: Peer-to-peer questionnaires were recruited through peer-reviewed questionnaires and HIV and syphilis were collected for blood tests. HIV infection rates and related behavioral traits were analyzed descriptively. Multivariate logistic regression analysis was used to identify the independent influencing factors of HIV infection. Results A total of 140 MSM migrant workers were recruited. The age (35.1 ± 9.7) years old, AIDS awareness rate was 72.9%. The proportion of intervention services received in the past year was less than 50%. The rate of anal intercourse with males in the last 6 months was 87.9%. The percentage of condom use in males during the last 6 months was 29.3%. In the recent 6 months, the proportion of women who have sex with women is 41.4%. In the recent 6 months, the rate of condom use in women who have sex with each sex is 10.3%. HIV and syphilis infection rates were 20.7% and 9.3%. Multivariate regression analysis showed that age (OR = 3.02, 95% CI: 1.63-5.59), free condom distribution over the past year (OR = 0.22, 95% CI: 0.09-0.57), syphilis (OR = 4.12 , 95% CI: 1.06 ~ 15.96) were independent influencing factors of HIV infection rate. CONCLUSIONS: HIV / AIDS awareness among MSM migrant workers in urban areas is low, the percentage of MSM receiving intervention services is low, the incidence of sexual intercourse with women is high, the rate of condom use is low, and the prevalence of HIV and syphilis is high, suggesting that HIV will be in this population Acceleration of transmission, due to its bisexual behavior, will promote the transmission of HIV from the MSM population to the general population.