Ridit分析在老年人健康状况研究中的应用

老年人健康状况研究中常常会遇到各种等级变量的分组比较,如健康状况自我评价年龄间、性别间、城乡间的比较、当采用原始数据进行分组比较时,通常只能说明等级构成上的不同,却很难判别各组的好差或高低。Ridit分析是一种用来处理等级变量的统计分析方法,平均Ridit值作为一个指标用于处理等级资料具有简单明了、易于理解、便于比较的特点。

Application of Ridit Analysis in Health Studies of the Elderly

Group comparisons of ordinal variables are often used in the health studies of the elderly, such as comparisons of self-rated health status among different groups by age, gender and rural-urban residents. When raw data is used, group compassion only shows the differences of an ordinal measurement between groups, but fails to identify the better or higher groups. Ridit analysis as one of the statistical methods dealing with ordinal variables can solve the problem. Being used as an index for analyzing ordinal variables, mean Ridit value is simple, clear and easy to be understood and compared.