Methods With Middle School Student Mental Health Scale (MSSMHS) and Suicide Attitude Questionnaire (QSA), 2442 middle school students recruited from 12 middle schools in Harbin were surveyed.

• 方法采用中学生心理健康量表(MSSMHS)和自杀态度问卷(QSA)，对哈尔滨市12所中学初一至高三年级2442名中学生进行问卷调查。