Methods The data was gained by health investigation forms (SF-36) and self-made questionnaire of relative factors, then analyzed the data by descriptive analysis and ordinal regression analysis.
方法采用健康调查量表（SF-36）及自编相关因素问卷按自填方式进行调查，获得数据，进行描述性和有序回归分析。
Note that education is controlled for in the ordinal multiple regression analysis.
值得注意的是“受教育水平”在多重序数回归分析中是得到控制的。
Firstly, the deficiency of two popular methods, measure of ordinal association and ROC analysis, for validation of binary regression models was illustrated by a designed numerical example.
首先通过一个数值例子，说明了顺序关联度量与ROC分析两种常用方法在二项响应回归模型预测能力验证方面存在的不足。
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