Table 1.

Demographic and clinical characteristics of the IGD group and HC.

Variables (mean ± SD)	IGD	HC	t
Age (years)	21.70 ± 2.74	22.40 ± 2.62	0.83
Education (years)	14.55 ± 2.93	15.15 ± 2.72	0.67
Average gaming hours per day	11.87 ± 5.33	1.90 ± 3.06	7.25***
Average gaming days per week	6.75 ± 0.71	2.4 ± 2.52	7.42***
AUDIT score	4.73 ± 3.07	3.75 ± 2.59	1.09
BDI score	12.4 ± 7.36	3.3 ± 3.89	4.88***
BIS-II score	56.00 ± 5.34	47.50 ± 4.92	5.23***
IAT score	71.85 ± 12.82	29.80 ± 8.80	12.09***

BDI, Beck Depression Scale; BIS, Barrett’s Impulsiveness Scale-II; IGD, Internet gaming disorder; IAT, Internet addiction test; HC, healthy controls.

***p < 0.001 for group comparisons.