TABLE 3.
Demography of ADHD and non-ADHD groups (Study 2).
| Variable | Study (ADHD) group (n = 4,132) | Control (non-ADHD) group (n = 4,132) | SMD |
| Sex | <0.01 | ||
| Female | 833 | 832 | |
| Male | 3,299 | 3,300 | |
| Age, years | 10.45 (3.24) | 10.45 (3.24) | <0.01 |
| 0–5 | 144 | 144 | |
| 6–10 | 2,107 | 2,108 | |
| 11–17 | 1,881 | 1,880 | |
| Economic status | 12.96 (5.89) | 12.84 (5.88) | <0.01 |
| <20% | 517 | 517 | |
| 20–80% | 2,108 | 2,107 | |
| >80% | 1,507 | 1,508 | |
| Region | <0.01 | ||
| Rural | 911 | 912 | |
| Metro | 3,221 | 3,220 | |
| Atopic dermatitis | <0.01 | ||
| Yes | 366 | 365 | |
| No | 3,766 | 3,767 | |
| Allergic rhinitis | <0.01 | ||
| Yes | 242 | 240 | |
| No | 3,890 | 3,892 | |
| CCI | 0.10 (0.32) | 0.10 (0.32) | <0.01 |
| 0 | 3,737 | 3,738 | |
| 1 | 374 | 374 | |
| 2 | 21 | 20 |
SMD, standardized mean difference and CCI, Charlson comorbidity index.