Table 1 Demographic, anthropometric and body composition data in the study sample considered as a whole or stratified by gender

Age (yrs)

10.8 ± 1.9

 10.9 ± 1.9

10.7 ± 1.9

 0.558

Weight (kg)

70.2 ± 16.5

 70.6 ± 16.5

69.9 ± 16.6

 0.794

Prepubertal/pubertal %

43.5/56.5

54.2/45.8

33.3/66.7

0.011

Stature (cm)

148.4 ± 11.3

149.4 ± 11.3

147.2 ± 11.2

0.194

Body Mass Index (kg/m²)

31.5 ± 3.8

31.1 ± 3.4

31.8 ± 4.2

0.243

Body Mass Index Z-score

3.6 ± 0.7

3.7 ± 0.6

3.4 ± 0.7

0.004

Fat mass _{height-weight equation} (kg)

31.3 ± 8.1

30.2 ± 7.3

32.5 ± 8.8^a

0.060

Fat mass _BIA (kg)

30.7 ± 9.0

30.0 ± 8.6

31.4 ± 9.5^b

0.296

Body fat _{height-weight equation} (%)

44.4 ± 3.5

42.8 ± 2.6

46.3 ± 3.4^a

< 0.001

Body fat _BIA (%)

43.2 ± 4.8

42.1 ± 4.3

44.4 ± 5.1^b

0.002