Table 3.

The incidence of psychological symptoms among high school, middle school, and primary school students (before versus after the outbreak) (N = 17,740).

More mental Symptoms than before	Primary school students(n = 8182)	Middle school students(n = 6543)	High school students(n = 3015)
Depressive symptoms	4552 (55.6%)	3670 (56.0%)	1800 (59.7%)
Anxious symptoms	5252 (64.2%)	4284 (65.5%)	2075 (68.8%)
Compulsive symptoms	4933 (60.%3)	3950 (60.4%)	1814 (60.2%)
Inattention	3113 (38.0%)	2452 (37.5%)	1303 (43.2%)
Sleep problems	2871 (35.0%)	2207 (33.7%)	1147 (38.0%)