Characteristics of subjects according to ethnicity and gender.

Data given as mean ± SD for normally distributed data and median (IQR) for non-normally distributed data.正态分布数据以均值±标准差（Standard Deviation, SD）的形式呈现，非正态分布数据以中位数（四分位数间距，Interquartile Range, IQR）的形式呈现。