Change (Time 2—Time 1) | ||||
---|---|---|---|---|
Time 1 | Time 2 | Mean (SD) | Range | |
Demographic | ||||
Male, n (%) | 307 (55%) | |||
Age, mean (SD) | 9.6 (0.9) | 11.6 (0.9) | 2.1 (0.1) | |
Prepubertal, n (%)* | 441 (79%) | 181 (32%) | ||
Anthropometry, mean† (SD) | ||||
BMIkg/m2 | 19.4 (4.2) | 21.1 (4.9) | 1.7 (1.7) | −6.0 to 11.5 |
BMIpercentage | 14.0 (19.4) | 15.2 (21.1) | 1.2 (7.4) | −35.6 to 28.1 |
BMIcentile | 68.5 (28.2) | 68.5 (28.7) | −0.05 (12.1) | −39.8 to 49.4 |
BMIz-score | 0.70 (1.0) | 0.69 (1.1) | −0.01 (0.4) | −1.75 to 1.70 |
DEXA, mean (SD) | ||||
FMkg | 10.7 (7.4) | 15.0 (9.7) | 4.3 (3.8) | −8.1 to 25.1 |
FMpercentage | 26.1 (10.8) | 28.4 (10.9) | 2.3 (4.7) | −15.3 to 16.5 |
FMz-score | 0.0 (1.0) | 0.0 (1.0) | 0.0 (0.4) | −1.5 to 1.7 |
FMI | 5.4 (3.4) | 6.4 (3.8) | 1.0 (1.4) | −5.0 to 8.0 |
*Four participants missing pubertal status at visit 2.
†Median anthropometry at Time 1: BMI: 18.2, BMIpercentage: 10.0, BMIcentile: 76.0, BMIz-score: 0.70; Median anthropometry at Time 2: BMI: 19.9, BMIpercentage: 12.4, BMIcentile: 78.6, BMIz-score: 0.80, FM: total fat mass, FMI: fat mass index.
BMI, body mass index; DEXA, dual-energy X-ray absorptiometry.