Table 1 Characteristics of all participants
Characteristics | Participants | P | Difference between proportions, % | ||
|---|---|---|---|---|---|
All (N = 3529) | Males (n = 1260) | Females (n = 2269) | |||
Age | 21.30 ± 2.74 | 21.54 ± 2.89 | 21.17 ± 2.64 | < 0.001 | |
Previous psychiatric diagnosis | 219 (6.2%) | 75 (6.0%) | 144 (6.3%) | 0.642 | 0.3% |
Hours of Internet browsing per day | 5.71 ± 4.47 | 5.57 ± 4.28 | 5.79 ± 4.58 | 0.153 | |
Alcohol use | 0.125 | ||||
Not at all | 2552 (72.3%) | 878 (69.7%) | 1674 (73.8%) | 4.1% | |
One or 2 days | 737 (20.9%) | 284 (22.5%) | 453 (20.0%) | 2.5% | |
Several days | 186 (5.3%) | 76 (6.0%) | 110 (4.8%) | 1.2% | |
More than half the days | 34 (1.0%) | 14 (1.1%) | 20 (0.9%) | 0.2% | |
Nearly every day | 20 (0.6%) | 8 (0.6%) | 12 (0.5%) | 0.1% | |
Marihuana use | 0.006 | ||||
Not at all | 3334 (94.5%) | 1166 (92.5%) | 2168 (95.5%) | 3.0% | |
One or 2 days | 117 (3.3%) | 55 (4.4%) | 62 (2.7%) | 1.7% | |
Several days | 45 (1.3%) | 22 (1.7%) | 23 (1.0%) | 0.7% | |
More than half the days | 11 (0.3%) | 6 (0.5%) | 5 (0.2%) | 0.3% | |
Nearly every day | 22 (0.6%) | 11 (0.9%) | 11 (0.5%) | 0.4% | |
Other substances use | 728 (20.6%) | 222 (17.6%) | 506 (22.3%) | 0.001 | 4.7% |
GAD-7 score | 6.17 ± 4.96 | 5.78 ± 4.93 | 6.39 ± 4.97 | < 0.001 | |
PHQ-9 score | 7.98 ± 5.63 | 7.62 ± 5.58 | 8.19 ± 5.65 | 0.004 | |
ICMH-IGD total sample score | 13.30 ± 6.03 | 15.45 ± 6.81 | 12.11 ± 5.19 | < 0.001 | |
Croatian sample score | 437 (12.4%) | 104 (8.3%) | 333 (14.7%) | < 0.001 | 6.4% |
Serbian sample score | 316 (9.0%) | 91 (7.2%) | 225 (9.9%) | 0.007 | 2.7% |
Portuguese sample score | 126 (3.6%) | 31 (2.5%) | 95 (4.2%) | 0.008 | 1.7% |
Turkish sample score | 244 (6.9%) | 94 (7.5%) | 150 (6.6%) | 0.341 | 0.9% |
Vietnamese sample score | 426 (12.1%) | 141 (11.2%) | 285 (12.6%) | 0.231 | 1.4% |
Polish sample score | 156 (4.4%) | 43 (3.4%) | 113 (5.0%) | 0.030 | 1.6% |
Indonesian sample score | 673 (19.1%) | 188 (14.9%) | 485 (21.4%) | < 0.001 | 6.5% |
English sample score | 1151 (32.6%) | 568 (45.1%) | 583 (25.7%) | < 0.001 | 19.4% |