Table 1.
Demographic and clinical characteristics of participants.
| HC | IGD | OCD | Statistical analysisa | ||
|---|---|---|---|---|---|
| (N = 23) | (N = 20) | (N = 20) | χ2 or F | P | |
| Sex (Male/Female) | 15/8 | 19/1 | 15/5 | 5.621 | 0.060 |
| Handedness (Right/Left) | 22/1 | 18/2 | 20/0 | 2.219 | 0.330 |
| Age (years) | 24.8 (4.7) | 24.5 (4.2) | 25.3 (6.1) | 0.145 | 0.865 |
| IQ | 116.2 (8.0) | 108.1 (15.2) | 109.3 (15.6) | 2.451 | 0.098 |
| Education (years) | 13.7 (1.3) | 14.5 (1.7) | 13.7 (2.0) | 1.503 | 0.231 |
| IATb | 32.7 (11.4) | 61.5 (11.8) | 37.2 (10.8) | 38.319 | <0.001** |
| Hours of game playing | 0.4 (0.6) | 4.4 (3.4) | 1.0 (1.5) | 20.663 | <0.001** |
| Y-BOCS Total | 0.0 (0.2) | 1.1 (2.3) | 21.4 (6.7) | 183.801 | <0.001** |
| Obsession | 0.0 (0.0) | 0.5 (1.5) | 10.7 (4.1) | 124.357 | <0.001** |
| Compulsion | 0.0 (0.2) | 1.0 (2.1) | 10.7 (3.1) | 164.675 | <0.001** |
| HAM-D | 2.2 (3.0) | 5.2 (4.1) | 12.0 (6.5) | 23.626 | <0.001** |
| HAM-A | 1.2 (1.4) | 3.5 (2.9) | 11.9 (7.0) | 34.427 | <0.001** |
HC, healthy control; IGD, internet gaming disorder; OCD, obsessive-compulsive disorder; IQ, intelligence quotient; IAT, Korean version of Young's Internet Addiction Test; Y-BOCS, Yale-Brown obsessive-compulsive scale; HAM-D, Hamilton rating scale for depression; HAM-A, Hamilton rating scale for anxiety.
Data are presented as means (standard deviation).
**
P < 0.005.
a
Analysis of variance, χ2 analysis or Fisher's exact test for categorical data.
b
With 2 missing values in OCD group.