Table 1 Main characteristics of children with ASD, ASD/ADHD, and ADHD tested with MPH
|  | ASD, n = 28 | ASD/ADHD n = 95 | ADHD, n = 220 | p value |
|---|---|---|---|---|
Male/female, n (%) | 17 (60.7)/11(39.3) | 56 (58.9)/39 (41.1) | 134 (60.9)/86 (39.1) | 0.95 |
Age, M (SD) years | 14.63 (2.52) | 12.99 (3.38) | 12.55 (3.29) |  < 0.01 |
MPH dose given, M (SD) mg | 34.93 (7.33) | 31.36 (13.26) | 30.55 (10.12) | 0.13 |
Time passed after MPH, M (SD) minutes | 105.18 (34.92) | 97.68 (29.04) | 93.30 (24.03) | 0.05 |
MPH formulation given, n (%) | Â | Â | Â | 0.12 |
Short acting | 0 | 1 (1.1) | 11 (5.0) | Â |
Long acting | 24 (85.7) | 74 (77.8) | 181 (82.3) | Â |
Unknown | 4 (14.3) | 20 (21.1) | 28 (12.7) | Â |