| Existence of ADHD (N = 456) | p | ||
| Yes | No | ||
| Time spent online | |||
| ≥ 8 hours | 19 (5.7%) | 221 (66.4%) | 0.905 |
| < 8 hours | 7 (2.1%) | 86 (25.8%) | |
| Social network subscription | |||
| Yes | 25 (5.5%) | 315 (69.1%) | 0.42 |
| No | 6 (1.3%) | 110 (24.1%) | |
| Social network subscription | |||
| ≥8 hours | 26 (5.8%) | 353 (78.8%) | 0.745 |
| <8 hours | 4 (0.9%) | 65 (14.5%) | |
| Medical history | |||
| Presence | 14 (3.1%) | 88 (19.3%) | 0.002 |
| Absence | 0 (0.0%) | 337 (73.9%) | |
| Psychiatric history | |||
| Yes | 0 (0.0%) | 3 (0.7%) | 0.639 |
| No | 31 (6.8%) | 422 (92.5%) | |
| Criminal record | |||
| Yes | 25 (80.6%) | 50 (11.0%) | 0.121 |
| No | 6 (19.4%) | 406 (89.0%) | |
| History of Cranio-Encephalic Trauma | |||
| Presence | 5 (1.1%) | 57 (12.5%) | 0.670 |
| Absence | 26 (5.7%) | 368 (80.7%) | |
| Neurosurgical intervention | |||
| Yes | 1 (0.2%) | 6 (1.3%) | 0.428 |
| No | 30 (6.6%) | 419 (91.9%) | |
| Parents’ status | |||
| Alive | 21 (4.6%) | 228 (50.0%) | 0.128 |
| Died | 10 (2.2%) | 197 (43.2%) | |
| Family during childhood | |||
| Extended family | 12 (2.6%) | 124 (27.2%) | 0.505 |
| Single-parent family | 3 (0.7%) | 21 (4.6%) | |
| Nuclear family | 15 (3.3%) | 252 (55.3%) | |
| Blended family | 0 (0.0%) | 5 (1.1%) | |