Characteristic | Total (n = 588) | Girls (n = 273) | Boys (n = 315) |
---|---|---|---|
Age, years (mean, SD) | 10.2 (1.2) | 10.1 (1.2) | 10.3 (1.3) |
BMI z-scorea (mean, SD) | 0.2 (1.0) | 0.2 (1.0) | 0.2 (0.9) |
Weight categoryb (n, %) | |||
 Underweight | 39 (6.6) | 22 (8.1) | 17 (5.4) |
 Healthy weight | 443 (75.3) | 194 (71.1) | 249 (79.1) |
 Overweight/obese | 106 (18.0) | 57 (20.9) | 49 (15.6) |
Hip circumference, cm (mean, SD) | 75.5 (8.4) | 75.5 (8.4) | 75.5 (8.3) |
Waist circumference, cm (mean, SD) | 66.2 (9.1) | 66.1 (9.4) | 66.3 (8.9) |
Waist-to-Hip ratio (mean, SD) | 0.5 (0.1) | 0.5 (0.1) | 0.5 (0.1) |
Urine volume, mL (mean, SD) | 900.4 (432.6) | 846.8 (394.2) | 946.9 (458.8) |
Urine creatinine, mmol/day (mean, SD) | 6.0 (1.9) | 5.7 (1.8) | 6.3 (1.9) |
Participants who completed 24hrU on a non-school day (n, %) | 312 (53.1) | 149 (54.6) | 163 (51.8) |
Participants who completed 24hrFR on a non-school day (n, %) | 137 (23.3) | 65 (23.8) | 72 (22.9) |