Table 1 Study Sample
| Â | TDC | w/ impairm. | w/o impairm. | Total |
|---|---|---|---|---|
Diagnostic group | ||||
 ADHD | – | 168 (62%) | 51 (29%) | 219 (18.5%) |
 BEH | – | 42 (15.5%) | 25 (14.2%) | 67 (5.7%) |
 ANX | – | 37 (13.7%) | 37 (21%) | 74 (6.2%) |
 LNG | – | 24 (8.9%) | 63 (35.8%) | 87 (7.3%) |
 TDC | 737 (100%) | – | – | 737 (62.2%) |
Gender | ||||
 boy | 353 (47.9%) | 154 (56.8%) | 111 (63.1%) | 618 (52.2%) |
 girl | 384 (52.1%) | 117 (43.2%) | 65 (36.9%) | 566 (47.8%) |
Age (months) | ||||
 Mean (SD) | 41.7 (1.3) | 41.7 (1.3) | 41.7 (1.3) | 41.7 (1.3) |
Maternal education | ||||
 Elem., HS | 161 (22.2%) | 105 (39.5%) | 60 (34.5%) | 326 (28%) |
 Bachelor | 330 (45.5%) | 101 (38%) | 66 (37.9%) | 497 (42.7%) |
 Master | 234 (32.3%) | 60 (22.6%) | 48 (27.6%) | 342 (29.4%) |