Prevalence distributions of self-reported adolescents’ mental health problem symptoms (items) with ages and the corresponding time of the survey (t1 & t2) (N = 328).

Prevalence distributions of self-reported adolescents’ mental health problem symptoms (items) with ages and the corresponding time of the survey (t1 & t2) (N = 328).青少年自我报告心理健康问题症状（条目）的患病率分布，该分布关联年龄与两次调查的对应时间点（t1与t2），总样本量N=328。