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Table 2 The main characteristics of subjects

From: Validation of predictive equations for resting energy expenditure in children and adolescents with different body mass indexes

 

Total (n = 275)

Male (n = 148)

Female (n = 127)

 

Variables

Mean ± SD

Mean ± SD

Mean ± SD

p value

Age (year)

11.8 ± 3.19

12.1 ± 3.35

11.5 ± 2.97

NS

Body weight (kg)

57.1 ± 20.71

59.8 ± 21.26

53.9 ± 19.67

p < 0.01*

Height (cm)

153.0 ± 17.11

156.1 ± 18.93

149.4 ± 13.95

p < 0.001*

BMI (kg/m2)

23.6 ± 5.81

23.8 ± 5.58

23.4 ± 6.09

NS

BMI (z score)

1.6 ± 1.57

1.6 ± 1.52

1.6 ± 1.63

NS

Fat percentage (%)

25.1 ± 9.34

22.2 ± 9.59

28.5 ± 7.82

p < 0.001*

FM (kg)

15.2 ± 9.58

13.9 ± 9.27

16.7 ± 9.74

p < 0.01*

FFM (kg)

41.6 ± 14.01

45.6 ± 15.37

37.1 ± 10.58

p < 0.001*

Measured REE(kcal/day)

1521.8 ± 423.69

1625.8 ± 486.00

1400.5 ± 295.46

p < 0.001*

VO2 (ml/min)

218.5 ± 60.92

233.5 ± 69.80

200.9 ± 42.57

p < 0.001*

Rf (l/min)

18.7 ± 4.39

18.7 ± 4.61

18.6 ± 4.12

NS

FeO2 (%)

17.0 ± 0.62

17.0 ± 0.61

17.0 ± 0.64

NS

  1. BMI = body mass index, FM = fat mass, FFM = fat-free mass, REE = resting energy expenditure, VO2 = The average oxygen consumption (in ml per minute), Rf = The average respiratory frequency, FeO2 = The average oxygen concentration in the exhaled air
  2. NS = Not significant
  3. *The difference between male and female groups were found statistically significant (p < 0.05)
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Nutrition Journal

ISSN: 1475-2891

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