Sample characteristics; values are weighted mean (SD), except where specified as (%)
| Characteristic | All | Male | Female |
| Child | |||
| n | 1704–1840 | 881–935 | 823–905 |
| Age (years) | 12.0 (0.4) | 12.0 (0.4) | 12.0 (0.4) |
| Height (cm) | 153.8 (8.0) | 153.3 (8.2) | 154.3 (7.7) |
| Weight (kg) | 46.5 (11.5) | 45.8 (11.6) | 47.3 (11.2) |
| BMI (kg/m2) | 19.5 (3.8) | 19.3 (3.8) | 19.7 (3.7) |
| BMI z-score | 0.36 (1.1) | 0.34 (1.1) | 0.38 (1.0) |
| Waist circumference (cm) | 66.9 (9.0) | 67.5 (9.2) | 66.1 (8.8) |
| Total body fat (%) | 22.6 (9.0) | 21.1 (9.3) | 24.1 (8.4) |
| Heart rate (beats/min) | 74.4 (10.0) | 73.1 (9.8) | 75.6 (9.9) |
| Disadvantage Index | 1009 (62) | 1008 (62) | 1010 (62) |
| Started puberty (%) | 91.5 | 88.0 | 95.4 |
| *Diabetes (%) | 0.4 | 0.3 | 0.5 |
| Parent | |||
| n | 1781–1802 | 222–225 | 1558–1577 |
| Age (years) | 43.7 (5.7) | 46.4 (7.0) | 43.3 (5.4) |
| Height (cm) | 165.7 (7.9) | 177.7 (7.3) | 164.1 (6.4) |
| Weight (kg) | 77.3 (18.5) | 91.3 (17.2) | 75.3 (17.9) |
| BMI (kg/m2) | 28.1 (6.2) | 28.9 (4.9) | 28.0 (6.4) |
| Waist circumference (cm) | 87.4 (15.0) | 98.1 (13.3) | 85.9 (14.6) |
| Total body fat percentage | 34.7 (9.4) | 26.1 (7.4) | 35.9 (9.1) |
| Heart rate (beats/min) | 64.7 (9.9) | 63.2 (10.3) | 64.9 (9.8) |
| *Diabetes (%) | 2.7 | 4.5 | 2.5 |
| *Heart condition (%) | 2.8 | 5.0 | 2.5 |
| *Pre-existing hypertension (%) | 6.4 | 14.0 | 5.3 |
Disadvantage Index is the Index of Relative Socioeconomic Disadvantage.
*Reported by parents.
BMI, body mass index; n, number of participants in the cohort with this measure.