TABLE 1.
Demographic information of ADHD/primary school and ADHD/secondary school groups.
| ADHD/primary school N (%) |
ADHD/secondary school N (%) |
|
| Gender | ||
| Male | 440 (85.77) | 211 (89.03) |
| Female | 73 (14.23) | 26 (10.97) |
| ADHD presentation | ||
| Inattentive | 27 (5.2) | 32 (13) |
| Hyperactive/Impulsive | 7 (1.4)** | 0 (0) |
| Combined | 455 (88.7) | 200 (84.4) |
| NOS | 24 (4.7)** | 5 (2.6) |
| Comorbid psychiatric diagnosis | ||
| Mood disorders | 3 (0.58) | 1 (0.42) |
| Behavioral disorders | 96 (18.71) | 40 (16.88) |
| Learning disorders | 81 (15.79) | 42 (17.72) |
| Anxiety disorders | 19 (3.7) | 10 (4.22) |
| Generalized developmental delay | 89 (17.35) | 30 (12.26) |
| No comorbidity | 225 (43.87) | 114 (48.5) |
| MPH treatment | ||
| Ongoing | 5 (0.97)* | 10 (4.22) |
| First prescription | 195 (38.02)* | 110 (46.41) |
*p < 0.05; **p < 0.001; Significant difference compared to ADHD/secondary school group.