Table 1.
Physical characteristics of the participants in relation to their weight classifications (mean ± standard error of the mean). Significant differences from the healthy weight classification (*P < 0·001) and the obese classification (#P < 0·01).
| All subjects (n = 123) | Healthy weight (n = 65) | Overweight (n = 22) | Obese (n = 36) | |
|---|---|---|---|---|
| Age (years) | 12·3 ± 0·7 | 12·4 ± 0·7 | 12·2 ± 0·6 | 12·1 ± 0·6 |
| Female frequency (%) | 54% | 58·5% | 54·5% | 47·2% |
| Body mass (kg) | 52·5 ± 14·5 | 43·1 ± 7·3# | 54·5 ± 6·7*,# | 69·0 ± 12·7 |
| BMI (kg/m2) | 22·6 ± 5·3 | 18·7 ± 1·9# | 23·3 ± 1·0*,# | 29·2 ± 4·2 |
| zBMI | 0·9 ± 1·1 | 0·1 ± 0·7# | 1·4 ± 0·1*,# | 2·1 ± 0·3 |
| BMI percentile | 73·0 ± 27·6 | 53·5 ± 24·6# | 91·3 ± 2·3* | 97·7 ± 1·4 |
| % Body fat | 26·5 ± 11·1 | 19·6 ± 6·8# | 27·9 ± 6·8*,# | 38·6 ± 10·2 |
| % Overweight | 24·5 ± 29·7 | 2·7 ± 10·4# | 28·8 ± 4·5*,# | 62·4 ± 22·7 |
| Serum leptin (ng/ml) | 27·0 ± 22·0 | 15·4 ± 7·7# | 24·5 ± 11·5# | 49·5 ± 26·8 |
| CMV seropositivity | 27·4% | 28·6% | 29·4% | 18·2% |
| EBV seropositivity | 50·9% | 47·3% | 35·3% | 60·6% |
| PEDS QL physical health score | 86·7 ± 16·3 | 87·8 ± 16·2 | 88·8 ± 12·4 | 83·4 ± 18·1 |
| PEDS QL psychosocial health score | 80·6 ± 19·3 | 82·0 ± 23·0 | 79·9 ± 15·2 | 78·8 ± 13·9 |
| PEDS QL total score | 82·8 ± 20·1 | 83·9 ± 23·0 | 83·0 ± 13·2 | 80·5 ± 18·0 |
BMI = body mass index; zBMI = standardized BMI; CMV = cytomegalovirus; EBV = Epstein–Barr virus; PEDS = Pediatric Quality of Life Inventory.