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Demographic information for the trial samples and the validation studies
| European trial | US trial | |
| N | 208 | 243 |
| German (%) | 87 (41.8) | |
| French (%) | 52 (25.0) | |
| Dutch (%) | 48 (23.1) | |
| English (%) | 21 (10.1) | |
| American (%) | 243 (100) | |
| Male (%) | 53.4 | 51.9 |
| Mean (SD) age – years | 4.7 (2.5) | 4.0 (1.8) |
