Table 2.
Comparisons of demographic, parental, and ADHD characteristics, comorbidities, and social skills deficits between participants with and without Internet addiction
| Have Internet addiction (n = 42) | No Internet addiction (n = 258) | t or χ2 | p value | |
|---|---|---|---|---|
| Age (years), mean (SD) | 13.2 (1.9) | 12.8 (1.8) | −1.338 | .182 |
| Sex, n (%) | ||||
| Girls | 7 (16.7) | 34 (13.2) | 0.373 | .542 |
| Boys | 35 (83.3) | 224 (86.8) | ||
| Broken parental marriage status, n (%) | 7 (16.7) | 62 (24.0) | 1.106 | .293 |
| Low paternal occupational SES, n (%) | 30 (71.4) | 145 (56.2) | 3.446 | .063 |
| Low maternal occupational SES, n (%) | 37 (88.1) | 169 (65.5) | 8.568 | .003 |
| ADHD subtypes, n (%) | ||||
| Combined | 30 (71.4) | 183 (70.9) | 0.931 | .628 |
| Inattention | 11 (26.2) | 60 (23.3) | ||
| Hyperactivity/impulsivity | 1 (2.4) | 15 (5.8) | ||
| ADHD symptoms, mean (SD) | ||||
| Inattention | 14.3 (6.0) | 12.4 (5.8) | −2.031 | .043 |
| Hyperactivity/impulsivity | 9.6 (7.2) | 8.7 (5.8) | −0.947 | .345 |
| Oppositional | 12.0 (6.1) | 9.5 (5.6) | −2.636 | .009 |
| Receiving medication for ADHD, n (%) | 31 (73.8) | 223 (86.4) | 4.434 | .035 |
| Comorbidity, n (%) | ||||
| Depressive or anxiety disorders | 5 (11.9) | 35 (13.6) | 0.086 | .769 |
| Autism spectrum disorders | 5 (11.9) | 29 (11.2) | 0.016 | .900 |
| Social skills deficits, mean (SD) | 126.5 (20.8) | 103.3 (21.6) | −6.482 | <.001 |
Note. ADHD = attention-deficit/hyperactivity disorder; SES = socioeconomic status.