Table 2.
Anthropometric data: BMI-SDS quartiles and %BF quartiles
| BMI-SDS | %BF | |||||||
|---|---|---|---|---|---|---|---|---|
| Q1 (IQR) | Q2 (IQR) | Q3 (IQR) | Q4 (IQR) | Q1 (IQR) | Q2 (IQR) | Q3 (IQR) | Q4 (IQR) | |
| N | 23,646 | 23,647 | 23,646 | 23,647 | 23,647 | 23,646 | 23,647 | 23,646 |
| Age, years | 12.7 (11.3; 13.8) | 12.6 (11.0; 13.9) | 12.6* (10.7; 13.9) | 11.9* (8.8; 13.9) | 13.0 (10.3; 14.2) | 12.5* (10.7; 13.8) | 12.3* (10.7; 13.7) | 12.3* (10.6; 13.7) |
| Male, % | 45.5* | 47.9* | 49.8* | 49.9* | 77.6* | 48.5* | 38.9* | 28.2* |
| Migration background, % | 11.4* | 14.0* | 17.5* | 20.5 | 11.8 | 13.9* | 16.8* | 21.1* |
| Weight-SDS | 1.4 (1.2–1.7) | 1.8* (1.6–2.0) | 2.1* (1.9–2.3) | 2.6* (2.4–2.9) | 1.7 (1.4–2.1) | 1.8* (1.4–2.1) | 2.0* (1.7–2.3) | 2.4* (2.1–2.7) |
| Height-SDS | 0.4 (−0.2 to 1.1) | 0.6* (−0.1 to 1.3) | 0.7* (0.1–1.4) | 1.0* (0.2–1.7) | 0.9 (0.2–1.6) | 0.9* (0.0–1.3) | 0.6* (−0.1 to 1.3) | 0.6* (−0.2 to 1.3) |
| BMI, kg/m2 | 25.7 (24.2; 26.9) | 28.0 (26.1; 29.4) | 30.8 (28.2; 32.3) | 34.2 (28.7; 37.1) | 26.0 (23.4; 28.0) | 26.8 (24.8; 29.1) | 28.8 (26.6; 31.3) | 32.9 (30.2; 36.3) |
| BMI-SDS | 1.54 (1.70; 2.30) | 1.85* (1.70; 2.30) | 2.14* (1.70; 2.30) | 2.52* (1.70; 2.30) | 1.65 (1.50; 1.90) | 1.81* (1.61; 2.02) | 2.05* (1.86; 2.23) | 2.40* (2.22; 2.60) |
| %BF | 36.0 (33.9; 37.9) | 38.5* (36.5; 40.5) | 41.1* (39.0; 43.1) | 44.1* (41.0; 46.6) | 34.3 (32.6; 35.5) | 38.0* (37.2; 38.7) | 40.9* (40.1; 41.7) | 44.9* (43.6; 46.7) |
| Fat mass, kg | 23.0 (19.9; 25.5) | 27.3* (23.0; 30.3) | 32.3* (26.5; 35.9) | 38.3* (24.3; 44.9) | 23.3 (17.1; 27.4) | 25.2* (20.3; 29.9) | 28.7* (23.5; 34.2) | 36.1* (29.8; 43.1) |
*p value <0.05 compared to Q1; p values with Bonferroni-Holm correction for repeated testing. SDS, standard deviation score.