Table 2.
Details of Holdout Dataset participants.
| Holdout set | n | Age (years) | Gender (%) | Handedness (%) | Medication history (%) | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Group | F | M | Left | Right | No data | None | Medicated | No data | ||
| Control | 94 | 12.0 ± 4.2 | 51.1 | 48.9 | 5.3 | 93.6 | 1.1 | 34.0 | 0.0 | 63.3 |
| ADHD-C | 51 | 11.5 ± 3.5 | 15.7 | 84.3 | 5.9 | 92.2 | 2.0 | 3.9 | 15.7 | 80.4 |
| ADHD-I | 26 | 12.1 ± 2.6 | 34.6 | 65.4 | 0.0 | 100.0 | 0.0 | 46.2 | 23.1 | 30.8 |
| Holdout set | Proportions by site (%) | |||||||||
| Group | PekingU | BrownU | KKI | NeuroIMAGE | NYU | OHSU | UPitt | WashU | ||
| Control | 28.7 | 0.0 | 8.5 | 14.9 | 12.8 | 29.8 | 5.3 | 0.0 | ||
| ADHD-C | 19.6 | 0.0 | 5.9 | 21.6 | 43.1 | 9.8 | 0.0 | 0.0 | ||
| ADHD-I | 53.8 | 0.0 | 0.0 | 0.0 | 26.9 | 3.8 | 15.4 | 0.0 | ||
| Holdout set | IQ scores (mean ± standard deviation) | |||||||||
| Group | Verbal IQ | Performance IQ | Full 2 IQ | Full 4 IQ | ||||||
| Control | 119.2 ± 12.8 | 108.5 ± 13.6 | 100.6 ± 14.4 | 114.6 ± 12.3 | ||||||
| ADHD-C | 109.2 ± 13.6 | 101.1 ± 17.0 | 93.3 ± 16.5 | 107.0 ± 14.8 | ||||||
| ADHD-I | 108.6 ± 13.1 | 101.5 ± 11.2 | NA | 106.1 ± 11.2 | ||||||
See section 2.1 for details and abbreviations.