Table 1 Summary statistics for anthropometric indices and body composition variables, including mean, skewness, standard deviation (SD), and quartiles, as well as their units, are presented by gender

Trunk Fat (kg)

Boys

1.47

1.26

1.42

1.62

0.27

0.77

 < 0.0001

Girls

4.41

2.84

4.07

5.79

1.88

0.48

Trunk Lean (kg)

Boys

15.29

11.30

14.81

19.29

4.26

0.29

 < 0.0001

Girls

13.65

11.47

14.25

15.79

2.93

-0.23

Trunk Bone (kg)

Boys

0.37

0.26

0.34

0.48

0.13

0.53

0.244

Girls

0.36

0.27

0.37

0.44

0.63

0.22

Leg Fat (kg)

Boys

1.56

1.32

1.53

1.74

0.29

0.44

 < 0.0001

Girls

4.96

3.44

4.82

6.39

1.76

0.17

Leg Lean (kg)

Boys

11.73

8.29

11.13

15.23

3.75

0.19

 < 0.0001

Girls

9.32

7.66

9.60

10.70

2.01

-0.09

Leg Bone (kg)

Boys

0.55

0.38

0.52

0.71

0.19

0.40

 < 0.0001

Girls

0.48

0.38

0.49

0.57

0.11

0.05

Arm Fat (kg)

Boys

0.79

0.67

0.77

0.88

0.17

0.83

 < 0.0001

Girls

1.19

0.65

1.09

1.62

0.63

0.54

Arm Lean (kg)

Boys

3.59

2.33

3.34

4.77

1.42

0.39

 < 0.0001

Girls

2.72

2.28

2.82

3.22

0.74

-0.37

Arm Bone (kg)

Boys

0.19

0.37

0.44

0.53

0.09

0.21

0.014

Girls

0.16

0.11

0.16

0.20

0.05

-0.09

Age (year)

Boys

14.1

2.5

11.6

13.9

15.7

-0.07

0.95

Girls

13.8

2.8

11.3

13.60

16.1

0.13

Weight (kg)

Boys

41.6

31.0

40.0

51.8

12.0

0.38

0.098

Girls

40.2

31.0

40.0

48.0

10.0

0.10

Height (cm)

Boys

155.2

142.3

154.0

169.8

15.7

-0.08

 < 0.0001

Girls

150.6

142.0

153.0

159.0

11.0

-0.65

BMI (kg/m²)

Boys

16.8

15.1

16.6

18.3

2.3

0.69

0.224

Girls

17.5

15.4

17.4

19.4

2.7

0.48

Waist Circumference (cm)

Boys

65.6

58.0

65.0

72.0

9.1

0.28

0.010

Girls

68.6

63.0

69.0

75.0

9.0

0.08

Hip Circumference (cm)

Boys

78.6

71.8

78.0

85.0

8.6

0.19

0.002

Girls

82.0

75.0

82.0

89.0

9.1

0.00