Table 1.

Descriptive statistics of demographic characteristics, IGD, PSU, depression, anxiety, and stress

			N(%)	Mean	SD
Age			1305	15.16	1.66
Gender	Male		763 (58.5%)
	Female		542 (41.5%)
Grade	Junior High		781 (59.8%)
	Senior High		524 (40.2%)
Have smartphone	Yes		1275 (97.7%)
	No		30 (2.3%)
IGD				2.51	2.30
	Cumulative scores	0	313 (24.0%)
		1	226 (17.3%)
		2	210 (16.1%)
		3	170 (13%)
		4	121 (9.3%)
		5	106 (8.1%)
		6	69 (5.3%)
		7	43 (3.3%)
		8	27 (2.1%)
		9	20 (1.5%)
PSU				31.35	10.86
	Male	< 31	369 (28.3%)
		≥ 31	374 (28.7%)
	Female	< 33	224 (17.2%)
		≥ 33	308 (23.6%)
Depression				8.80	8.81
	0–9		790 (60.5%)
	> 9		515 (39.5%)
Anxiety
	0–7		694 (53.2%)
	> 7		611 (46.8%)
Stress				10.95	8.82
	0–14		913 (70.0%)
	> 14		392 (30.0%)