TABLE 1.
Group classification and testing location comparisons.
| Groups: overall (N = 50) | Sample size | Average ADC score | Average ASRS v.1 score | |
| DCD | 12 | 113.1 (14.1) | 42.5 (9.3) | |
| ADHD | 9 | 87.8 (12.0) | 59.0 (9.0) | |
| DCD + ADHD | 7 | 108.1 (11.7) | 52.9 (11.7) | |
| Control | 22 | 66.7 (12.8) | 44.0 (8.2) | |
| Participants from Germany (n = 30) | Sample size | Average ADC score | Average ASRS v.1 score | |
| DCD | 1 | 119.0 | 48.0 | |
| ADHD | 6 | 88.2 | 60.8 | |
| DCD + ADHD | 2 | 104.5 | 64.0 | |
| Control | 21 | 67.6 | 45.1 | |
| Participants from United Kingdom (n = 20) | Sample size | Average ADC score | Average ASRS v.1 score | Median MABC-2 percentile |
| DCD | 11 | 112.9 | 42.0 | 5th |
| ADHD | 3 | 85.3 | 55.3 | 25th |
| DCD + ADHD | 5 | 109.6 | 48.4 | 2nd |
| Control | 1 | 50.0 | 22.0 | 63rd |
Overall group scores on the ADC and ASRS v.1 were compared via a one-way ANOVA. There was a significant effect of group on ADC score [F(3,46) = 38.37, p < 0.001]. Post hoc tests revealed all group comparisons were significant (p < 0.05) aside from the DCD and DCD + ADHD group comparison. There was also a significant effect by group on ASRS v.1 scores [F(3,45) = 7.78, p < 0.001]. Post hoc tests revealed this effect was driven by all group comparisons except for ADHD and DCD + ADHD; DCD and DCD + ADHD; DCD and the control group; DCD + ADHD and the control group (p > 0.05).