Table 1.
Sociodemographic characteristics
| Persistent ADHD(N=74) |
Remittent ADHD(N=22) |
Controls(N=9 1) |
Test statistic |
p-value | |
|---|---|---|---|---|---|
| Mean ± SD | Mean ± SD | Mean ± SD | |||
| Age at baseline (years) | 11.0 ± 3.2 | 11.1 ± 3.3 | 12.0 ± 2.8 | F(2,184)=2.34 | 0.10 |
| Age at follow-up (years) | 21.7 ± 3.8 | 21.5 ± 3.2 | 22.7 ± 2.9 | F(2,184)=2.30 | 0.10 |
| Socioeconomic status | 1.9 ± 1.0 | 1.9 ± 0.8 | 1.7 ± 0.8 | χ2(2)=3.34 | 0.07 |
| N (%) | N (%) | N (%) | |||
| Intact family | 50 (68) | 20 (91)* | 77 (85)* | χ2(2)=9.30 | 0.01 |
| Ascertainment status (psychiatric) | 40 (44) | 7 (32) | 37 (50) | χ2(2)=2.33 | 0.31 |
*
p<0.05 versus Persistent ADHD