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Table 3 Descriptive statistics of important anthropometric, dietary and behavioral variables tested, by age group.

From: Design and descriptive results of the "Growth, Exercise and Nutrition Epidemiological Study In preSchoolers": The GENESIS Study

Variables

First Age Group (12–24 months old)

 

Boys

 

Girls

 

P-value

Anthropometrical

Mean ± s.d

 

Mean ± s.d

  

Weight§(Kg)

12.7 ± 1.8

 

11.7 ± 1.8

 

<0.001

Height† (cm)

85.4 ± 5.8

 

82.6 ± 4.8

 

<0.001

BMI (Kg/m2)

-

 

-

 

-

 

n

%

n

%

 

Underweight

1

1.0

2

2.1

0.573

At risk of overweight

-

-

-

-

-

Overweight

16

16.8

12

12.6

0.380

Nutrient Intake

Mean ± s.d

 

Mean ± s.d

  

Energy§ (MJ/day)

5.35 ± 0.88

 

5.22 ± 0.75

 

0.312

(Kcal/day)

1277.4 ± 211.3

 

1246.9 ± 178.5

  

Total Fat§ (gr/day)

53.0 ± 13.4

 

51.4 ± 11.6

 

0.394

Total Fat (% of Energy)

37.1 ± 5.2

 

36.9 ± 5.3

 

0.772

Saturated Fat§ (gr/day)

19.9 ± 7.4

 

19.3 ± 5.2

 

0.672

Saturated Fat§ (% of Energy)

13.8 ± 3.3

 

13.8 ± 2.7

 

0.910

Carbohydrates§ (gr/day)

154.0 ± 26.5

 

151.2 ± 24.9

 

0.472

Carbohydrates§ (% of Energy)

48.4 ± 5.3

 

48.6 ± 5.5

 

0.792

Protein§ (gr/ day)

52.2 ± 10.7

 

50.5 ± 9.6

 

0.287

Protein§ (% of Energy)

16.3 ± 1.8

 

16.2 ± 1.7

 

0.597

Behavioral

Mean ± s.d

 

Mean ± s.d

  

TV watching (hrs/day)*

0.55 ± 0.88

 

0.46 ± 0.80

 

0.671

L-VPA (hrs/week)*

1.45 ± 3.15

 

1.05 ± 2.29

 

0.498

Variables

Second Age Group (25–36 months old)

 

Boys

 

Girls

 

P-value

Anthropometrical

Mean ± s.d

 

Mean ± s.d

  

Weight§(Kg)

15.2 ± 2.5

 

14.7 ± 2.2

 

0.018

Height† (cm)

95.4 ± 4.5

 

94.1 ± 4.5

 

0.008

BMI (Kg/m2)

17.2 ± 2.4

 

17.0 ± 2.0

 

0.208

 

n

%

n

%

 

Underweight

9

3.5

7

3.3

0.919

At risk of overweight

48

18.6

39

18.5

0.973

Overweight

36

14.0

32

15.2

0.711

Nutrient Intake

Mean ± s.d

 

Mean ± s.d

  

Energy§ (MJ/day)

5.84 ± 0.95

 

5.61 ± 0.91

 

0.007

(Kcal/day)

1394.9 ± 227.5

 

1338.0 ± 218.6

  

Total Fat§ (gr/day)

62.5 ± 13.6

 

59.3 ± 13.8

 

0.008

Total Fat (% of Energy)

40.2 ± 4.4

 

39.7 ± 4.9

 

0.238

Saturated Fat§ (gr/day)

23.1 ± 6.3

 

21.6 ± 5.9

 

0.004

Saturated Fat§ (% of Energy)

14.8 ± 2.7

 

14.4 ± 2.7

 

0.075

Carbohydrates§ (gr/day)

157.5 ± 29.6

 

152.5 ± 27.2

 

0.085

Carbohydrates§ (% of Energy)

45.2 ± 5.0

 

45.8 ± 5.2

 

0.264

Protein§ (gr/ day)

57.8 ± 11.7

 

55.2 ± 12.6

 

0.013

Protein§ (% of Energy)

16.6 ± 2.1

 

16.5 ± 2.3

 

0.465

Behavioral

Mean ± s.d

 

Mean ± s.d

  

TV watching (hrs/day)*

1.20 ± 1.20

 

1.18 ± 1.23

 

0.527

L-VPA (hrs/week)*

1.51 ± 2.63

 

1.21 ± 2.41

 

0.377

Variables

Third Age Group (37–48 months old)

 

Boys

 

Girls

 

P-value

Anthropometrical

Mean ± s.d

 

Mean ± s.d

  

Weight§(Kg)

17.3 ± 2.5

 

17.0 ± 2.7

 

0.098

Height† (cm)

103.0 ± 4.7

 

102.1 ± 4.6

 

0.003

BMI (Kg/m2)

16.8 ± 1.8

 

16.6 ± 1.8

 

0.307

 

n

%

n

%

 

Underweight

15

3.2

12

2.9

0.808

At risk of overweight

79

17.0

84

20.6

0.173

Overweight

90

19.4

62

15.2

0.106

Nutrient Intake

Mean ± s.d

 

Mean ± s.d

  

Energy§ (MJ/day)

6.04 ± 0.99

 

5.78 ± 0.99

 

<0.001

(Kcal/day)

1442.4 ± 237.1

 

1379.0 ± 237.3

  

Total Fat§ (gr/day)

65.1 ± 14.3

 

62.3 ± 14.2

 

0.004

Total Fat (% of Energy)

40.4 ± 4.5

 

40.5 ± 4.6

 

0.857

Saturated Fat§ (gr/day)

23.5 ± 6.3

 

22.5 ± 6.3

 

0.024

Saturated Fat§ (% of Energy)

14.6 ± 2.8

 

14.6 ± 2.8

 

0.779

Carbohydrates§ (gr/day)

161.9 ± 30.1

 

154.6 ± 29.2

 

<0.001

Carbohydrates§ (% of Energy)

45.0 ± 4.8

 

45.0 ± 4.8

 

0.991

Protein§ (gr/ day)

59.8 ± 12.7

 

56.9 ± 12.6

 

<0.001

Protein§ (% of Energy)

16.6 ± 2.2

 

16.5 ± 2.1

 

0.505

Behavioral

Mean ± s.d

 

Mean ± s.d

  

TV watching (hrs/day)*

1.89 ± 1.53

 

1.81 ± 1.32

 

0.780

L-VPA (hrs/week)*

1.27 ± 2.52

 

1.09 ± 2.09

 

0.851

Variables

Fourth Age Group (49–60 months old)

 

Boys

 

Girls

 

P-value

Anthropometrical

Mean ± s.d

 

Mean ± s.d

  

Weight§(Kg)

19.6 ± 3.2

 

19.2 ± 3.4

 

0.116

Height† (cm)

109.8 ± 4.8

 

108.8 ± 5.3

 

0.006

BMI (Kg/m2)

16.6 ± 1.9

 

16.6 ± 2.0

 

0.889

 

n

%

n

%

 

Underweight

11

3.3

8

2.2

0.371

At risk of overweight

55

16.5

75

20.5

0.166

Overweight

63

18.9

73

20.0

0.704

Nutrient Intake

Mean ± s.d

 

Mean ± s.d

  

Energy§ (MJ/day)

6.18 ± 0.12

 

5.92 ± 0.11

 

0.009

(Kcal/day)

1474.9 ± 295.8

 

1414.1 ± 259.7

  

Total Fat§ (gr/day)

66.3 ± 17.1

 

63.9 ± 15.5

 

0.081

Total Fat (% of Energy)

40.2 ± 5.0

 

40.5 ± 5.0

 

0.593

Saturated Fat§ (gr/day)

23.8 ± 7.2

 

22.7 ± 6.5

 

0.070

Saturated Fat§ (% of Energy)

14.5 ± 2.9

 

14.4 ± 2.9

 

0.948

Carbohydrates§ (gr/day)

167.6 ± 44.3

 

158.9 ± 39.2

 

0.014

Carbohydrates§ (% of Energy)

45.2 ± 6.4

 

44.8 ± 6.5

 

0.344

Protein§ (gr/ day)

60.5 ± 15.2

 

57.8 ± 13.7

 

0.028

Protein§ (% of Energy)

16.4 ± 2.5

 

16.3 ± 2.3

 

0.784

Behavioral

Mean ± s.d

 

Mean ± s.d

  

TV watching (hrs/day)*

2.31 ± 1.55

 

2.16 ± 1.45

 

0.167

L-VPA (hrs/week)*

1.10 ± 2.42

 

1.17 ± 2.13

 

0.092

  1. †: The variable "Height" presented in the Table corresponds to recumbent length for children 1 to 2 years old and to standing height for children older than 2 years.
  2. §: Parameter was log-transformed
  3. *: The level of statistical significance was estimated with the non-parametric Mann-Whitney test