| N | % | Age (years) | Height (cm) | Weight (kg) | Age at start of symptoms (years) | Age at ADHD diagnosis (years) | |||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
 |  |  | Mean | SD | Mean | SD | Mean | SD | Mean | SD | Mean | SD |
All patients | 159 | 100 | 14.1 | 1.53 | 163 | 10.96 | 54.4 | 13.40 | 4.3 | 2.21 | 9.8 | 2.77 |
   Girls | 34 | 21.4 | 14.4 | 1.70 | 162 | 8.27 | 55.3 | 12.96 | 4.9 | 2.50 | 10.7 | 2.91 |
   Boys | 125 | 78.6 | 14.0 | 1.48 | 163 | 11.60 | 54.2 | 13.56 | 4.2 | 2.11 | 9.6 | 2.69 |
ADHD, combined type* | 81 | 50.9 | 13.9 | 1.50 | 161 | 11.09 | 53.8 | 14.41 | 4.1 | 2.13 | 9.5 | 2.68 |
ADHD, predominantly inattentive type* | 73 | 45.9 | 14.2 | 1.53 | 165 | 10.85 | 54.3 | 11.90 | 4.5 | 2.03 | 10.1 | 2.87 |
ADHD, NOS* | 5 | 3.1 | 15.0 | 1.80 | 167 | 4.51 | 67.2 | 13.19 | 6.3 | 4.58 | 11.2 | 2.51 |