Demographics of the subjects*.

*The number of the participants and percentage (in brackets) are shown in each column, except for age and GHQ-12 score, in whose column mean and SD (in brackets) are described instead.**The numbers of missing data for each variable are 256 for drinking alcohol, 126 for usage of recreational drugs, and 135 for violence from adults in the home.

除年龄与GHQ-12（General Health Questionnaire-12）得分列外，其余各列均标注参与者人数与括号内的百分比；年龄及GHQ-12得分列则替换为均值及括号内的标准差（Standard Deviation，缩写SD）。各变量的缺失数据条数分别为：饮酒行为256条，娱乐性药物使用126条，家庭内成人施暴情况135条。