Table 1.

Characteristics of 5175 participants and frequencies of different levels of depression and anxiety based on different cutoff point criteria

Variables	Categories	n	Frequency (%)
Age	Mean±SE (years)	13.37±0.02
Sex	Male	2673	51.65
	Female	2502	48.35
Only child	Yes	1093	21.12
	No	4082	78.88
Residence	Urban	1362	26.32
	Rural	3813	73.68
Living arrangement	With both parents	3842	74.24
	With single parent	1013	19.57
	Other*	320	6.18
School level	Primary school	1339	25.87
	Middle school	3117	60.23
	High school	719	13.89
Depression score⁎⁎
0-4	No	3517	67.96
5-9	Mild	1020	19.71
10-14	Moderate	352	6.80
15-19	Severe	163	3.13
20-27	Extremely severe	124	2.40
Total		5175	100.00
0-9	No	4537	87.67
10-27	Yes	638	12.33
Total		5175	100.00
Anxiety score⁎⁎⁎
0-4	No	3846	74.32
5-9	Mild	1005	19.42
10-14	Moderate	179	3.46
15-21	Severe	145	2.80
Total		5175	100.00
0-9	No	4851	93.74
10-21	Yes	324	6.26
Total		5175	100.00

^⁎Living without parents but with grandparents, relatives, friends, live-in nanny, etc.

^⁎⁎Screened by PHQ-9

^⁎⁎⁎Screened by GAD-7.