Abstract: Objective Objective To explore the impact of self?efficacy on the behavior of contacting schistosome cercarial infested wa? ter among middle school students. Methods Methods In the transmission control area and endemic control area of the schistosomiasis endemic regions in Hubei Province，a total of 3 204 middle school students were selected through the stratified cluster random sampling method and investigated by questionnaires. Results Results The incidence rates of contacting infested water with Oncomela? nia hupensis snails during the past 3 and 12 months among the middle school students were 11.4%（364/3 204）and 14.8% （474/ 3 204）respectively，while those of contacting indefinite infested water during the past 3 and 12 months were 23.8%（762/3 204） and 28.0%（898/3 204）respectively. The awareness rate of schistosomiasis prevention and control knowledge was 82.1%（2 631/ 3 204） . There were“knowledge?practice separation”in the prevention and control of schistosomiasis among the middle school students. The correlation analysis and Logistic regression analysis showed that the self?efficacy of schistosomiasis protective be? havior of middle school students was a protective factor for contacting with infested water，with the adjusted odds ratio values of 0.882，0.886，0.914 and 0.927. Conclusions Conclusions Self?efficacy of schistosomiasis protective behavior is a protective factor for con? tacting with infested water among middle school students，and improving their self?efficacy may be an effective strategy to settle the problem of“knowledge?practice separation”

Key words: Schistosomiasis, Self?efficacy, Health education, Infested water, Middle school student, Hubei Province

摘要： 目的 目的 探索湖北省血吸虫病流行区初中生防护行为自我效能对其接触疫水行为的影响。方法 方法 在湖北省血吸 虫病传播控制区和疫情控制区， 通过整群随机抽样抽取3 204 名初中生进行问卷调查。结果 结果 中学生最近3个月和最近 12 个月接触明确有钉螺的水体的行为发生率分别为11.4% （364/3 204） 和14.8% （474/3 204）， 接触不明确有钉螺的水体 的行为发生率达23.8% （762/3 204） 和28.0% （898/3 204）， 血防知识及格率为82.1% （2 631/3 204）， 存在 “知行分离” 的问 题。相关分析及Logistic回归分析显示血吸虫病防护行为自我效能是初中生接触疫水行为的保护因素 （调整OR值分别 为0.882、 0.886、 0.914、 0.927）。结论 结论 初中生血吸虫病防护行为自我效能是接触疫水行为的保护因素， 提高初中生自我 效能可能是解决 “知行分离” 问题的有效策略之一。

关键词: 血吸虫病, 自我效能, 健康教育, 疫水, 中学生, 湖北省