Methods a descriptive statistical methods was employed. A qualitative method, such as key informant interview was also used to evaluate the causes of the disparities.
方法根据数据类型和分布特征采用相应的统计描述与推断方法，运用差距分析法进行安全性评价，并结合定性访谈结果进一步分析产生差距的原因。
Methods:Data was collected by literature review, questionnaire and key informant interview, and related variables were sorted, to analyze the importance of influencing factors.
资料与方法：通过文献综述、问卷调查和知情者访谈收集资料，并对相关变量进行排序，分析影响因素的重要程度。
Methods: Analyzing existing data and applying key informant in-depth interview.
方法：分析项目县现有资料和进行知情人深入访谈。
Methods: Analyzing existing data and applying key informant in-depth interview.
方法：分析项目县现有资料和进行知情人深入访谈。
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