Table 1.
Summary of unadjusted anthropometric, physical fitness components and health-related quality of life characteristics.
| Median (25th, 75th percentile) |
||||
|---|---|---|---|---|
| All Children (n = 432*) | Boys (n = 232) | Girls (n = 200) | T-test (p) | |
| Anthropometry | ||||
| Age (y) | 9.9 (9.2, 10.7) | 10.1 (9.3, 10.7) | 9.7 (9.1, 10.7) | 0.148 |
| Age to peak height velocity (y) | −2.7 (-3.4, −2) | −3.3 (-3.8, −2.7) | −2 (-2.5, −1.3) | < 0.001 |
| Post-peak height velocity (%) | 1.2 | 0 | 2.5 | – |
| BMI (kg.m−2) | 18 (16.4, 21.2) | 17.8 (16.2, 21.1) | 18.5 (16.7, 21.2) | 0.084 |
| BMI z-score | 0.71 (-0.11, 1.74) | 0.73 (-0.19, 1.87) | 0.67 (-0.1, 1.61) | 0.516 |
| Physical fitness components | ||||
| 20 m shuttle run test (total shuttles run) | 22 (15, 33) | 25 (16, 39) | 20 (14, 28) | 0.001 |
| Standing broad jump (maximum distance, cm) | 128 (112, 144) | 131 (118, 148) | 122 (107, 135) | 0.001 |
| Sit-and-reach (maximum reach, cm) | 16 (10, 21) | 14 (8, 18) | 18 (12, 23) | <0.001 |
| Handgrip strength - dominant hand (maximum, kg) | 15.3 (12.4, 17.4) | 15.7 (12.6, 18.1) | 14.6 (12.2, 16.6) | 0.012 |
| Handgrip strength - non-dominant hand (maximum, kg) | 14.5 (11.9,17.3) | 15.3 (12.0, 17.6) | 13.8 (11.9, 16.7) | 0.017 |
| Health-related quality of life domain (T scores) | ||||
| Physical Wellbeing | 49.6 (44.7, 59.4) | 52.4 (44.7, 59.4) | 47.1 (42.5, 55.6) | 0.054 |
| Psychological Wellbeing | 50.6 (43.2, 56) | 50.6 (43.2, 56) | 50.6 (43.2, 56) | 0.406 |
| Autonomy & Parents | 49.5 (44, 59.1) | 49.5 (44, 59.1) | 49.5 (44, 59.1) | 0.699 |
| Social Support & Peers | 53.2 (44.4, 66.3) | 57.8 (44.4, 66.3) | 52 (44.4, 66.3) | 0.063 |
| School Environment | 54.4 (45.4, 62.8) | 54.4 (45.4, 62.8) | 54.4 (45.4, 62.8) | 0.416 |
*
Individual n will vary due to missing data.