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目的 了解绵阳市男男性行为者(MSM)艾滋病知识知晓及预防服务现状.方法 采用滚血球抽样法,在知情同意下在MSM活动场所定时、定点,进行招募和自填式匿名调查.结果 在合格调查的820例中,艾滋病知识平均总知晓率为95.7％,不同地区差异有统计学意义(x2=24.617,P=0.000).各知识点蚊虫叮咬不会传播艾滋病知晓率最低,为90.5％,其次是看上健康可能携带艾滋病病毒为94.3％,其余均在95％以上.不同文化程度(x2 =24.257,P=0.000)、职业(x2 =114.988,P=0.000)、年龄(x2=26.462,P=0.000)、异性婚姻状况(x2=16.882,P=0.001)、户籍(x2=11.105,P=0.001)知晓率差异有统计学意义,知晓率随文化程度增高而增高(趋势检验x2=60.051,P=0.000),小学及以下文化(79.6％)、年龄≥40岁(92.2％)、已婚(93.4％)、外省户籍(91.4％)最低.不同地区近1年接受过安全套宣传和发放/艾滋病咨询与检测(x2 =38.636,P=0.001)、社区药物维持治疗/清洁针具交换(x2=66.864,P=0.001)、同伴教育(x2=86.562,P=0.000)差异有统计学意义,平均分别为92.8％、6.0％和64.8％.结论 绵阳市MSM人群艾滋病知识知晓及预防服务较高,但不平衡,存在盲点和薄弱环节.“,”Objective To understand the awareness of AIDS prevention among 820 men who have sex with men (MSM) and the situation of preventive services.Methods By snowball sampling,the MSM volunteers were recruited and conducted questionnaires with knowledge of AIDS prevention.Results In the 820 MSM volunteers,the average awareness percentage of AIDS prevention was 95.7％.The rates varied in different places (x2 =24.617,P =0.000).The lowest percentage of knowing that the AIDS couldnt be transmitted by the moth bite was 90.5％.The lowest percentage of knowing that men with healthy looking may carry AIDS virus was 94.3％ and the rest was above 95％.There were statistical differences on the awareness percentages of AIDS prevention,including the following factors as education degree (x2 =24.257,P =0.000),profession (x2 =114.988,P =0.000),age (x2 =26.462,P =0.000),heterosexual marriage state (x2 =16.882,P =0.001) and census registration (x2 =11.105,P =0.001).The awareness rate of AIDS prevention increased with education level (x2 =60.051,P =0.000).The lowest percentages of elementary education level or lower,age beyond 40,being married and non-native inhabitant,were 79.6％,92.2％,93.4％ and 91.4％ respectively.At the same time,significant differences were found among different regions with condom dispensing/consultation and detection of AIDS in the past one year (x2 =38.636,P =0.001),maintenance drug therapy in community/exchange of clean needles (x2 =66.864,P =0.001) and companion education (x2 =86.562,P =0.000),the percentages were 92.8％,6.0％,64.8％ respectively.Conclusion The general awareness of AIDS prevention is relatively high in Mianyang,yet unbalanced,some blind spots and weak links still exist currently.