Table 3.
Symptom severity across profile groups: mean CIUS symptom scales and total score.
| Parameter | TS | PG1 | PG2 | PG3 | PG4 HR-IU | PG5 IUD | H | df | p |
|---|---|---|---|---|---|---|---|---|---|
| N | 5387 | 134 | 2483 | 1695 | 748 | 327 | |||
| Mean age | 14.72 (1.96) | 14.31 (1.95) | 14.48 (1.95) | 14.89 (1.93) | 15.06 (1.98) | 15.14 (1.91) | 108.80 | 4 | 0.000 |
| CIUS total score | 17.24 (9.27) | 20.60 (6.87) | 12.07 (6.72) | 18.40 (7.35) | 24.64 (7.55) | 32.16 (9.01) | 1968.65 | 4 | 0.000 |
| Loss of control (LOC) | 1.34 (0.78) | 1.99 (0.72) | 0.96 (0.61) | 1.43 (0.69) | 1.84 (0.70) | 2.28 (0.78) | 1410.05 | 4 | 0.000 |
| Withdrawal symptoms (WS) | 0.90 (1.07) | 0.93 (1.09) | 0.57 (0.84) | 0.96 (1.03) | 1.39 (1.14) | 2.06 (1.33) | 698.56 | 4 | 0.000 |
| Coping with unpleasant mood (C) | 1.53 (1.15) | 1.74 (1.09) | 1.18 (1.02) | 1.60 (1.08) | 2.08 (1.16) | 2.57 (1.26) | 615.27 | 4 | 0.000 |
| Mental and behavioral preoccupation (MBP) | 1.11 (0.81) | 1.08 (0.71) | 0.81 (0.68) | 1.17 (0.72) | 1.55 (0.80) | 2.11 (0.97) | 937.37 | 4 | 0.000 |
| Inter- and intrapersonal conflicts (IIC) | 1.16 (0.74) | 1.28 (0.59) | 0.73 (0.53) | 1.27 (0.56) | 1.79 (0.58) | 2.40 (0.67) | 2127.43 | 4 | 0.000 |
Notes: Profiles were compared using Kruskal-Wallis H-test. Values are presented as means (with SD in parentheses). TS = total sample, LPG = latent profile group, HR-IU = high risk Internet use, IUD = Internet Use Disorder, H = Kruskal Wallis test statistic.