Table 1.
Anthropometric characteristics, body composition indices and prevalence of overweight/obesity among 9–13-year-old children from four regions of Greece; Healthy Growth Study
| Boys (n 606) | Girls (n 622) | Total sample (n 1228) | ||||
|---|---|---|---|---|---|---|
| Mean | sd | Mean | sd | Mean | sd | |
| Age (years) | 11·2 | 0·6 | 11·2 | 0·6 | 11·2 | 0·6 |
| Weight (kg) | 45·3 | 10·8 | 45·0 | 11·1 | 45·2 | 10·9 |
| Height (cm) | 148 | 7·0 | 149 | 8·0 | 149 | 8·0 |
| BMI (kg/m2) | 20·4 | 3·9 | 20·1 | 3·7 | 20·3 | 3·8 |
| Resistance (Ω) | 634·0 | 73·0 | 673·9 | 85·1 | 654·2 | 81·8 |
| Reactance (Ω) | 56·5 | 8·9 | 57·6 | 9·1 | 57·1 | 9·0 |
| Total fat (%)† | 28·4 | 9·2 | 29·4 | 9·6 | 28·4 | 9·4 |
| Visceral fat rating | 3·8 | 0·2 | 2·2 | 0·1 | 4·8 | 3·2 |
| % | % | % | ||||
| Weight groups | ||||||
| Normal weight | 55·2 | 60·0 | 57·6 | |||
| Overweight | 31·5 | 30·4 | 30·9 | |||
| Obese | 13·3 | 9·6* | 11·4 | |||
*
Statistically significant difference between genders (P<0·05, derived from the two-sample Z-test for proportions).
†
Total fat was assessed using the resistance and reactance measurements provided by the Akkern BIA 101 device using the following equations: FFM=−7·13(±2·79)+Ht2/R×0·66(±0·07)+Xc×0·07(±0·02)+Ht×0·06(±0·03)+Wt×0·06(±0·03) (boys) and FFM=−0·86(±3·40)+Ht2/R×0·46(±0·07)+Xc×0·04(±0·02)++Ht×0·05(±0·03)+Wt×0·14(±0·04) (girls). Fat-free mass was calculated and then fat mass was estimated.