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Demographic data of the groups.
| Group | N | Gender | Age (years) | |
|---|---|---|---|---|
| Male (%) | Female (%) | Median [range] | ||
| White Class 7.5 | 10 | 5 (50%) | 5 (50%) | 17.5 [14 - 25] |
| White Class 6 | 10 | 3 (30%) | 7 (70%) | 16.0 [13 - 19] |
| 3D White | 10 | 8 (80%) | 2 (20%) | 16.0 [14 - 27] |
| Control | 12 | 8 (67%) | 4 (33%) | 17.0 [13 - 27] |
