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Demographic and anthropometric characteristics of Study 1 participants
| Girls | Boys | |
|---|---|---|
| N | 123 | 105 |
| Age (years) | 15.4 ± 1.4 | 15.1 ± 1.3 |
| Race/ethnicity (% non-Hispanic White) | 54.5 | 55.2 |
| Height (cm)*** | 162.7 ± 6.8 | 170.7 ± 8.9 |
| Fat mass (%)*** | 29.8 ± 10.5 | 18.3 ± 9.3 |
| Fat-free mass (log kg)*** | 45.2 ± 11.0 | 53.0 ± 12.7 |
| BMI z | .7 ± 1.1 | .5 ± .9 |
| Overweight (%) | 38.3 | 29.0 |
p < .001.
