TABLE 1.
Demographic and psychological characteristics.
| −IGD group (n = 19) | + IGD group (n = 21) | Statistics | |
| Age | 23.6 ± 3.2 | 22.4 ± 3.9 | z = 1.19, p = 0.24 |
| Sex (male/female) | 15 (78.9%)/4 (21.1%) | 18 (85.7%)/3 (14.3%) | χ2 = 0.32, p = 0.57 |
| Handed (left/right) | 3 (15.8%)/16 (84.2%) | 2 (9.5%)/19 (90.5%) | χ2 = 0.36, p = 0.55 |
| Education (years) | 14.4 ± 4.4 | 13.8 ± 1.6 | z = 1.13, p = 0.27 |
| Game time (hours/week) | 19.6 ± 11.0 | 23.4 ± 10.9 | z = 1.13, p = 0.26 |
| IGDS9-SF | 13.5 ± 3.1 | 25.4 ± 4.6 | z = 4.69, p < 0.01* |
| Comorbidity total | 3 (15.5%) | 10 (47.6%) | χ2 = 4.64, p = 0.07 |
| ADHD | 1 (5.3%) | 4 (19.0%) | χ2 = 1.73, p = 0.19 |
| MDD | 2 (10.5%) | 6 (28.6%) | χ2 = 2.03, p = 0.15 |
| HAM-A | 2.1 ± 3.5 | 3.5 ± 4.7 | z = 0.96, p = 0.34 |
| HAM-D | 2.1 ± 3.1 | 3.6 ± 4.9 | z = 0.95, p = 0.34 |
| WASI | 116.5 ± 11.3 | 115.9 ± 10.7 | z = 0.29, p = 0.77 |
*Statistically significant. High risk for IGD (+ IGD) group, low risk for IGD (−IGD) group. IGDS9-SF, internet gaming disorder scale-short form; IAT, internet addiction test; ADHD, attention deficit hyperactivity disorder; MDD, major depressive disorder; HAM-A, Hamilton anxiety rating scale; HAM-D, Hamilton rating scale for depression; WASI, Wechsler abbreviated scale of intelligence.