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目的核实报告病例高危行为暴露史,评估HIV病毒异性性传播危险因素,甄别异性性接触感染HIV的方式及其特征分析,为控制艾滋病在株洲地区进一步流行提供依据。方法采用横断面调查方法,设计统一问卷,一对一的走访调查,重新评估原报告可随访到的“非婚异性性传播”病例的HIV感染危险因素及其特征。结果原报告的175例HIV感染途径为异性性传播病例通过调查甄别,140例为异性性传播、33例为男男同性传播、注射及其它各1例;甄别调查后艾滋病异性性传播比例(63.64%)明显低于原报告水平(79.55%)(χ2=13.71,P=0.00);不安全商业性性传播风险明显高于非商业性固定性伴传播(r=5.06);异性性传播男女比为1.8∶1,男性明显高于女性(χ2=13.96,P=0.00);原报告低估了男男同性传播危险(χ2=13.80,P=0.00)。结论艾滋病的传播途径形式多样,株洲地区以异性性传播及男男同性传播为主,以不安全商业性性传播为主要特征。
Objective To verify the history of exposure to high-risk behaviors in reported cases, assess the risk factors of heterosexual transmission of HIV, identify the patterns of heterosexual contact with HIV and provide a basis for further characterization of AIDS control in Zhuzhou. Methods A cross-sectional survey method was used to design a unified questionnaire and a one-on-one survey to re-evaluate the risk factors and characteristics of HIV infection in the cases of “non-marital heterosexual transmission” that the original report could follow up. Results The 175 HIV infections reported in the original survey were classified by survey, 140 were heterosexual transmission, 33 were gonorrhea, 1 injections and 1 in each case. The proportion of heterosexual transmission after screening (63.64 %) Was significantly lower than the original reported level (79.55%) (χ2 = 13.71, P = 0.00); the risk of unsafe commercial sexes was significantly higher than that of nonspecific sex partners (r = 5.06) (Χ2 = 13.96, P = 0.00). The original report underestimated the risk of MSM transmission (χ2 = 13.80, P = 0.00). Conclusion There are various forms of transmission of AIDS. Zhuzhou area is dominated by heterosexual transmission and homosexual transmission, and unsafe commercial sex transmission is the main feature.