Table 2.
Descriptive statistics for major study variables.
| Variables | All Participants | Boys | Girls | p (Boys vs. Girls) |
|---|---|---|---|---|
| Age 12–14 | 2217 | 1003 (45.2%) | 1214 (54.8%) | - |
| Age 15–18 | 2297 | 1089 (47.4) | 1208 (52.6%) | - |
| Total | 4514 | 2092 (46.4%) | 2422 (53.6%) | - |
| City | ||||
| Krasnoyarsk | 2901 | 1327 (45.7%) | 1574 (54.3%) | - |
| Abakan | 1400 | 674 (48.1%) | 726 (51.9%) | - |
| Kyzyl | 213 | 91 (42.7%) | 122 (57.3%) | - |
| Ethnicity | ||||
| Russians | 3546 | 1656 (46.7%) | 1890 (53.3%) | - |
| Khakass | 164 | 66 (40.2%) | 98 (59.8%) | - |
| Tuvans | 397 | 179 (45.1%) | 218 (54.9%) | - |
| Others | 407 | 191 (46.9%) | 216 (53.1%) | - |
| CIAS results (n = 4514) | ||||
| Chen Internet addiction Scale (CIAS) | 44.3 ± 12.5 | 42.5 ± 12.0 | 45.8 ± 12.7 | 0.009 |
| Generalized problematic Internet use (PIUgen), CIAS ≥ 65 |
324 (7.2%) | 109 (5.2%) | 215 (8.9%) | <0.001 |
| GASA results (n = 4514) | ||||
| Game Addiction Scale for Adolescents (GASA) | 9.6 ± 6.7 | 12.1 ± 6.03 | 7.5 ± 6.3 | <0.001 |
| Problematic computer game use (PUgame), 4/7 GASA items endorsed |
471 (10.4%) | 329 (15.7%) | 142 (5.9%) | <0.001 |
| SMDS results (n = 4514) | ||||
| Social Media Disorder Scale (SMDS) | 1.7 ± 1.8 | 1.1 ± 1.5 | 2.1 ± 1.9 | <0.001 |
| Problematic social media use (PUsocial) 5/9 SMDS items endorsed |
359 (8.0%) | 73 (3.5%) | 286 (11.8%) | <0.001 |
| Strengths and Difficulties Questionnaire (SDQ) results (n = 4514) | ||||
| Total difficulties | 11.4 ± 5.4 | 10.4 ± 5.2 | 12.3 ± 5.4 | <0.001 |
| Emotional symptoms | 3.1 ± 2.5 | 2.1 ± 2.1 | 3.8 ± 2.5 | <0.001 |
| Hyperactivity | 3.3 ± 2.0 | 3.1 ± 2.0 | 3.4 ± 2.1 | <0.001 |
| Conduct problems | 2.3 ± 1.5 | 2.3 ± 1.5 | 2.3 ± 1.5 | 0.955 |
| Peer problems | 2.8 ± 1.8 | 2.8 ± 1.8 | 2.8 ± 1.8 | 0.687 |
| Prosocial behavior | 7.1 ± 2.1 | 6.8 ± 2.2 | 7.4 ± 2.1 | <0.001 |
Note: data are presented as n (%) and mean ± SD. Pearson χ2 test and Student’s t-tests were used, respectively.