Table 1.
Descriptive statistics for the included participants in studies 1–3.
| Study 1. Single School Lunch Study |
Study 2. Repeated School Lunch Study |
Study 3. BigO Cohort Study |
|
|---|---|---|---|
| Number of subjects | 114 | 50 | 1832 |
| % females | 58.8% | 58.0% | 51.1% |
| Age, y | 16.5 ± 0.8 | 16.7 ± (0.6) | 15.8 ± 0.9 |
| BMI, kg/m2 | 21.4 ± 3.1 | 21.6 ± 3.4 | 23.1 ± 6.0 |
| BMIz | 0.04 ± 1.0 | 0.08 ± 1.0 | 0.47 ± 1.4 |
| % with BMIz < 0 | 45.6% | 44.0% | 39.6% |
| % with BMIz ≥ 0 and ≤ 1.96 | 50.9% | 52.0% | 46.3% |
| % with BMIz > 1.96 | 3.5% | 4.0% | 14.1% |
| Weight, kg | 62.0 ± 11.7 | 61.8 ± 11.8 | 66.6 ± 18.0 |
| Height, cm | 170.1 ± 9.8 | 168.7 ± 8.9 | 169.9 ± 10.1 |
BMI = body mass index, BMIz = BMI z-scores, cm = centimeters, kg = kilogram, and y = years. Data are presented as the mean ± standard deviation, if not otherwise specified.