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目的评价县级男男性行为者(MSM)艾滋病防治网络行为干预效果。方法采用滚雪球抽样法,招募四川省绵阳市县级MSM进行行为学和血清学基线调查后,开展行为干预,间隔1年分别进行期中、终期评估调查,比较相关结果以评价效果。结果 3次调查人口学特征一致(均为P>0.05),近6月男性商业性行为、异性性行为呈下降趋势,男性肛交呈上升趋势,近1周肛交频率呈下降趋势(均为P<0.05)。近1次肛交安全套使用率、近6个月肛交安全套坚持使用率,分别从基线调查的77.3%、45.4%上升到终期评估的89.5%、62.4%,艾滋病病毒(HIV)、梅毒感染率,分别从基线调查的5.9%、6.7%下降到终期的3.4%、2.2%(均为P<0.05)。结论县级MSM艾滋病高危行为明显改变,HIV、梅毒流行趋势初步遏制,干预措施切实有效。
Objective To evaluate the effect of behavioral intervention on HIV / AIDS prevention and treatment in men who have sex with men at county level (MSM). Methods The snowball sampling method was used to conduct behavioral and serological baseline surveys at county level in Mianyang, Sichuan Province. Behavior interventions were conducted at intervals of 1 year, followed by mid-term and final assessments, respectively. The relevant results were compared to evaluate the effect. Results The demographic characteristics of the three surveys were consistent (all P> 0.05). In the recent 6 months, commercial sex and heterosexual behaviors of men decreased. Anal sex of men increased and the frequency of anal intercourse decreased (P < 0.05). Nearly 1 anal intercourse rate of condom use and nearly 6 months of continuous use of anal sex condoms increased from 77.3% and 45.4% of the baseline survey to 89.5% and 62.4% of the final assessment respectively. HIV, syphilis infection rate, Respectively from 5.9% and 6.7% of the baseline survey to 3.4% and 2.2% of the final period (all P <0.05). Conclusion The HIV / AIDS prevalence at county MSM changed significantly. HIV and syphilis prevalence was initially checked, and the interventions were effective.