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Table 3 Comparison of physical characteristics with statistical data for sex- and age-related differences analyzed by two-way ANOVA

From: Determining total energy expenditure in 3–6-year-old Japanese pre-school children using the doubly labeled water method

 

Boys

Girls

Difference

3–4-year-old

5–6-year-old

3–4-year-old

5–6-year-old

Sex

Age

Sex*Age

Mean

SD

Mean

SD

Mean

SD

Mean

SD

F

p

F

p

F

p

n

24

45

20

51

      

Age, month

51.4

6.6

70.3

6.6

48.5

7.7

71.5

6.1

0.5

0.492

304.4

 < 0.001*

2.9

0.091

Height, cm

100.6

6.0

111.9

5.7

97.9

6.0

112.4

4.9

1.2

0.267

163.2

 < 0.001*

2.5

0.115

Weight, kg

15.6

2.5

19.8

3.8

15.0

2.1

19.6

2.7

0.6

0.449

64.2

 < 0.001*

0.2

0.691

Body mass index, kg/m2

15.4

15.7

15.7

1.8

15.6

1.0

15.5

1.3

0.0

0.996

0.1

0.703

0.7

0.394

Fat-free mass, kg

12.5

2.0

16.0

2.3

11.0

1.4

15.1

1.9

10.7

0.001*

110.1

 < 0.001*

0.7

0.405

Fat mass, kg

3.2

0.9

3.8

2.0

4.0

1.0

4.5

1.4

8.0

0.005*

4.2

0.043*

0.1

0.754

% Fat mass, %

20.2

4.2

18.6

5.6

26.5

4.0

22.6

5.0

33.0

 < 0.001*

9.2

0.003*

1.6

0.204

Fat-free mass index, kg/m2

12.3

1.2

12.7

1.0

11.4

0.6

11.9

0.8

22.6

 < 0.001*

7.9

0.006*

0.0

0.927

Fat mass index, kg/m2

3.1

0.8

3.0

1.3

4.2

0.8

3.5

1.0

18.1

 < 0.001*

3.9

0.500

1.8

0.185

  1. *Statistically different