Summary of participant demographics. Mean ± standard deviation data are shown for age in years, and gender and ethnicity are shown as percentage of total sample. Age was compared between groups using the non-parametric Wilcoxon Rank Sum test, and gender and ethnicity variables were compared between groups using Chi-square tests.

Summary of participant demographics. Mean ± standard deviation data are shown for age in years, and gender and ethnicity are shown as percentage of total sample. Age was compared between groups using the non-parametric Wilcoxon Rank Sum test, and gender and ethnicity variables were compared between groups using Chi-square tests.受试者人口统计学特征汇总。年龄以均值±标准差（Mean ± standard deviation）的形式呈现，性别与种族数据以占总样本量的百分比形式展示。组间年龄差异采用非参数威尔科克森秩和检验（Wilcoxon Rank Sum test）进行比较，组间性别与种族变量的差异则通过卡方检验（Chi-square tests）进行分析。