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目的了解三亚市不同场所男男性行为(MSM)人群艾滋病感染及相关知识行为状况,为采取有效的健康教育和预防干预措施提供依据。方法采用分类滚雪球抽样方法,对活动在“同志”酒吧、公园、学校、网络的MSM人群开展问卷调查,并采集血样进行HIV、梅毒和丙肝抗体检测。结果共调查392名MSM,HIV感染率为7.9%,其中酒吧139人,公园57人,学校76人,网络120人。HIV感染率分别为10.8%、14.0%、1.3%、5.8%,以公园人群最高,差异有统计学意义(P<0.05)。不同场所MSM在婚姻状态、艾滋病知识知晓及与同性发生过肛交、商业性行为、与异性发生过性行为、使用安全套的问题上差异有统计学意义(P均<0.05)。结论三亚市不同场所的MSM HIV感染及人口学特征、艾滋病知识知晓、高危行为有差异。无保护高危性行为普遍存在,艾滋病知识知晓率低,HIV感染率高,艾滋病流行形势严峻。应根据不同场所MSM的HIV感染情况、人口学及高危行为特征,有针对性地开展健康教育和行为干预措施。
Objective To understand the status of HIV infection and related knowledge and behavior among men who have sex with men (MSM) in different places in Sanya, and to provide basis for effective health education and preventive interventions. Methods The classification snowball sampling method was used to conduct a questionnaire survey on MSM population with activities in “gay” bars, parks, schools and networks. Blood samples were collected for HIV, syphilis and hepatitis C antibody testing. Results A total of 392 MSM were investigated. The HIV infection rate was 7.9%, including 139 bars, 57 parks, 76 schools and 120 networks. The prevalence of HIV infection was 10.8%, 14.0%, 1.3% and 5.8% respectively, with the highest in the park population, with significant difference (P <0.05). MSM in different places had statistically significant differences in marital status, knowledge of HIV / AIDS, and anal intercourse with same sex, commercial sex, sexual intercourse with the opposite sex and condom use (all P <0.05). Conclusion MSM HIV infection and demographic characteristics, HIV / AIDS awareness and risk behaviors in different places in Sanya City are different. Unprotected and high-risk sexual behaviors are prevalent, awareness of HIV / AIDS is low, HIV prevalence is high, and the HIV / AIDS epidemic is grim. Health education and behavioral interventions should be targeted according to HIV status, demographics and risk behaviors of MSM in different places.