Table 1. Baseline Demographic/Clinical Characteristics of ADHD Participants and Completers.
| All participants | |
| Age (yrs) | 8.17±2.01 |
| Gender (M:F) | 75:11 |
| Completers | |
| Age (yrs) | 8.00±1.80 |
| Gender (M:F) | 34:3 |
| Body weight (kg) | 32.21±10.06 |
| All participants | |
| K-ARS scores | |
| Inattention | 13.78±5.53 |
| Hyperactivity | 12.18±5.99 |
| Total ARS scores | 25.96±10.65 |
| All participants | |
| ADS scores | |
| Omission errors | 75.23±33.81 |
| Commission errors | 79.09±67.52 |
| Response time | 53.13±14.17 |
| Response variability | 79.80±30.30 |
| Completers | |
| Methylphenidate dose (mg) | 22.23±8.93 |
| Methylphenidate dose per weight (mg/kg) | 0.70±0.20 |
K-ARS, Korean ADHD rating scale; ADS, the computerized ADHD diagnostic system; ADHD, attention deficit hyperactivity disorder.
Numbers are presented as mean±standard deviation.