中文摘要：

目的 构建健康危险因素的元数据框架,为健康危险因素数据的规范化表达和信息共享奠定基础.方法 参照国内外有关健康危险因素技术标准,定义影响健康危险因素的分类,规范健康危险因素的属性并对健康危险因素的数据项进行归类,采用UML对元数据框架建模.结果 健康危险因素的元数据框架共包含4个子类、6个子子类、33个属性和92个数据项,将影响健康的危险因素逐步分解,形成类的树状层次结构.第一层为健康危险因素,第二层分为职业危险因素、环境危险因素、行为危险因素和其它4个子类.每个类包含一组特定的属性,形成一系列数据项归类表.结论 元数据框架规范下的健康危险因素数据具有完整、清晰的语义和统一的格式.构建元数据框架有利于健康危险因素数据的标准化,可用于国家层面上健康危险因素数据标准的研发和维护.

英文摘要：

Objective To build a metadata framework for health risk factors （HRFs） to provide a basis for the standardized expression and sharing of HRFs＇data.Method Referring to technology standards associated with HRFs,the classification of affecting HRFs was defined,and attributes of classes and data items were standardized and classified respectively.The metadata framework was modeled using Unified Modeling Language.Result The metadata framework is comprised of 4 classes,6 sub-classes,32 attributes and 92 data items.The framework has a hierarchical structure by classifying super class of HRFs.The top layer is HRFs.The second layer is divided into occupation,environmental,behavioral and other risk factors.Every class is made up of a set of attributes,which form a series of data items classification table.Conclusion The HRFs data based on the metadata framework has a complete and clear semantics,and has a standardized format.The developed framework could improve the data standardization of HRFs data,and also be used to data development and maintenance at the national level.