Participant characteristics presented in counts for categorical variables and in medians (IQRs) for continuous variables.

Participant characteristics presented in counts for categorical variables and in medians (IQRs) for continuous variables.受试者特征的展示方式为：分类变量以计数形式呈现，连续变量以中位数[四分位距（Interquartile Range，IQR）]形式呈现。