Abstract: Objective Objective To establish an index system of the key factors of elimination of schistosomiasis. Methods Methods A ques? tionnaire was designed based on the reference review，and 24 scientists working in the field of schistosomiasis control or re? search or management were investigated by using the Delphi method. The importance of each index reflecting the endemicity of schistosomiasis was scored by each scientist. The assessing system for key factors of eliminating schistosomiasis was established， and the normalized weight and combined weight were calculated. Results Results The assessing system included three indexes in the first grade，seven indexes in the second grade and thirteen indexes in the third grade. Among the indexes in the first grade，the normalized weights of endemicity，natural environment and social environment were 0.371 1，0.339 5，and 0.289 4，respective? ly. Among the indexes in the second grade，the economy showed the highest combined weight of 0.289 4 while the agriculture and sanitation both showed the lowest score of 0.112 7. Among the indexes in the third grade，the infection rate of animals showed the highest combined weight of 0.124 6 while the agriculture and plant structure both showed the lowest score of 0.053 0. Conclusion Conclusion The indexes of the assessing system provide the scientific evidence for surveillance work when elimination of schis? tosomiasis.

Key words: Schistosomiasis； Elimination； Transmission control； System of criteria； Delphi method

摘要： 目的 建立消除血吸虫病的关键因素指标体系，为制定监测和控制方案、最终在山区阻断血吸虫病传播提供可靠依据。方法 采用文献查阅法设计调查问卷，选择24位从事血吸虫病防治、科研和管理的专家进行德尔菲法调查，对消除血吸虫病相关因素的重要性进行评分，建立消除血吸虫病关键因素指标体系并计算体系中各指标的归一化权重和组合权重。结果 经过2轮调查，确立了包括3个一级指标、7个二级指标和13个三级指标的消除血吸虫病关键指标体系。疫情、自然环境和社会环境等3个一级指标的归一化权重分别为0.371 1、0.339 5、0.289 4。二级指标中，经济的组合权重最高，为0.289 4；农业生产和卫生设施组合权重最低，均为0.112 7。三级指标中，家畜感染率组合权重最高，为0.124 6，种植结构组合权重最低，为0.053 0。结论 消除血吸虫病关键因素指标体系的建立对明确消除血吸虫病阶段监测工作的方向和重点具有指导意义。

关键词: 血吸虫病；消除；传播控制；指标体系；德尔菲法