【目的】 评价沿海三个城市高中学生预防艾滋病同伴干预的中期随访效果,探讨同伴干预效果的可持续性。 【方法】 从上海、三明、北海三所城市按照重点、普通和职业学校分层后随机抽取了18个班级的高中阶段学生分为干预组和对照组,在干预组实施预防艾滋病同伴干预,在干预前、干预后两周和一年的用相同的问卷实施调查。 【结果】 干预组学生艾滋病相关知识得分、对安全性行为益处的认知以及安全性行为意向得分在干预两周及随访一年时均明显高于干预前(P<0.001),两周及一年时的各项得分也高于同期对照组。 【结论】 同伴干预在高中生中提高艾滋病预防相关知识、认知和行为意向方面是有效的,并能维持较长时间。

【Objective】 To evaluate mid-term follow-up effect on peer-led HIV/AIDS prevention among senior high school students of three coastal cities and discuss the sustainability of peer intervention on HIV/AIDS prevention. 【Methods】 18 classes senior high school students of key, regular and vocational schools selected from Shanghai, Sanming and Beihai were divided into intervention group and control group randomly. The peer-led HIV/AIDS prevention was conducted in intervention group and the same questionnaire was carried out before intervention, two weeks after and 1-year after. 【Results】 The scores of HIV/AIDS related knowledge, cognitive benefits for security behavior and safe sexual behavioral intentions among intervention group were significantly higher than the previous one at both two weeks and one year after intervention(P<0.01). It also scored higher than control group at the same circumstances. 【Conclusions】 Peer-led intervention on HIV prevention among senior high school students can improve the HIV/AIDS related knowledge, cognitive and behavioral intentions effectively, and it can also maintain a long time.