ADHD | Inattentive | Hyperactive | Combined |
| |||||
Age (in years) | N | Percent of ADHD | N | Percent of ADHD | N | Percent of ADHD | NADHD | Total Sample | ADHD Prevalence |
6 | 1 | 9 | 4 | 36 | 6 | 55 | 11 | 136 | 8.1% |
7 | 6 | 20 | 13 | 43 | 11 | 37 | 30 | 301 | 10% |
8 | 3 | 14 | 9 | 41 | 10 | 46 | 22 | 238 | 9.2% |
9 | 2 | 13 | 7 | 44 | 7 | 44 | 16 | 238 | 6.7% |
10 | 2 | 20 | 2 | 20 | 6 | 60 | 10 | 200 | 5.0% |
11 | 3 | 30 | 3 | 30 | 4 | 40 | 10 | 268 | 3.7% |
Total | 17 | 17 | 38 | 38 | 44 | 44 | 99 | 1381 | 7.2% |