中文摘要：

目的利用结构方程模型构建艾滋病相关知识、态度和行为关系模型，对艾滋病相关知识、态度和行为之间的关系进行研究，为更好地开展艾滋病预防和控制工作提供科学依据。方法针对2010年6月调查并有效回收的961份沈阳建筑工人调查问卷，采用SPSS12．0进行艾滋病相关知识、态度和行为关系的因子分析，并利用LiserL8．5软件构建结构方程模型。结果采用结构方程模型方法，拟合了艾滋病相关知识、态度和行为关系模型，结构方程模型调整的拟合优度指数AGFI=0．82，RMSR=0．094，模型较好地拟合了数据。结果表明艾滋病相关知识与对待艾滋病的态度、行为有着重要的影响，年龄因素可能是影响艾滋病相关知识、态度和行为的重要因素。结论结构方程模型在使用上比传统的统计方法更具优势，能够合理解释艾滋病相关知识、态度和行为的相互关系。建议在对建筑工人大力宣传艾滋病相关知识时应考虑年龄因素的影响，针对不同的年龄群采取不同的手段进行宣传和教育。

英文摘要：

Objective To investigate the relationship among AIDS-related knowledge, attitude and behavior （KAB）by structural equation modeling, and provide scientific basis for HIV/AIDS prevention and control work. Methods Survey was carried out among construction workers in June 2010 at Shenyang, and 961 questionnaires were effectively recovered. The data was analyzed by using SPSS12.0;The model of Structural Equation Modeling was built by Matlab 6.5. Results The study fitted the data of knowledge, attitude and behavior analysis on AIDS ,the Adjusted Goodness of Fit Index（AGFI）=0.82, the Root Mean Square Residual（ RMSR ）=0.094. The fitting effect of the model was good. The knowledge of AIDS closely correlated with the attitude and behaviors,and age maybe an important factor which affects the knowl- edge, attitude and behavior on AIDS. Conclusion Structural equation modeling showed more advantages than the traditional statistical methods, which can reasonable explain the relationship of HIV/AIDS related knowledge, attitude and behavior. We should propagandize the knowledge, attitude and behavior on AIDS to the construction workers and choose different ways of education for different age groups .