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目的了解男男性行为者艾滋病病毒(human immunodeficiency virus,HIV)感染率和行为学特征,为在该人群中开展更有效的艾滋病预防控制工作提供依据。方法用分类滚雪球的抽样方法对男男性行为者(men who have sex with men,MSM)进行匿名问卷调查,同时采集外周血样进行HIV和梅毒血清学检测。结果 2010-2012年分别调查了422人,422人和434人,3次调查中调查对象的艾滋病知识知晓率无差异,调查对象HIV和梅毒确认检出率呈增高趋势,最近一次与同性发生性行为时安全套使用率差异有统计学意义(χ2=128.39,P<0.001),最近半年与同性性行为均用安全套的率差异无统计学意义(χ2=0.83,P=0.660),最近半年与异性发生性行为比例呈下降趋势。接受艾滋病相关服务者所占比例呈增加趋势(χ2=44.50,P<0.001)。结论芜湖市MSM人群HIV感染率高,存在高危行为,应进一步加强干预工作。
Objective To understand the HIV prevalence and behavioral characteristics of men who have sex with men and to provide basis for more effective AIDS prevention and control in this population. Methods An anonymous questionnaire was conducted on men who have sex with men (MSM) by using snowball classification method. Peripheral blood samples were also collected for HIV and syphilis serological tests. Results A total of 422 persons, 422 persons and 434 persons were surveyed from 2010 to 2012. There was no difference in the rate of AIDS knowledge among the three surveys, and the detection rate of HIV and syphilis in the survey showed an increasing trend. The most recent one was homosexuality (Χ2 = 128.39, P <0.001). There was no significant difference in the rates of condom use between the same sex and the same sex during the last six months (χ2 = 0.83, P = 0.660). In the past six months, the rates of condom use were significantly different The proportion of sexual activity shows a downward trend. The proportion of AIDS-related service providers showed an increasing trend (χ2 = 44.50, P <0.001). Conclusion There is a high risk of HIV infection among MSM population in Wuhu City, and the intervention should be further strengthened.