Table 2

Lifestyle-related variables among Saudi adolescents stratified by sex and BMI categories
Variable Male Female
Normal Overweight Obese Normal Overweight Obese
Age (years) b

16.8

± 1.1

16.7

± 1.2

16.8

± 1.1

16.5

± 1.0

16.5

± 1.1

16.6

± 1.1

Weight (kg) a, b, c, d

56.1

± 8.5

75.2

± 7.4

98.3

± 16.1

49.6

± 7.1

65.4

± 6.3

85.7

± 15.8

Height (cm) a,b

168.0

± 7.4

168.4

± 6.6

169.1

± 7.1

156.6

± 5.7

156.7

± 6.4

168.5

± 6.0

BMI (kg/m2) a, b, c

19.8

± 2.4

26.5

± 1.5

34.3

± 4.8

20.2

± 2.5

26.6

± 1.5

34.9

± 6.0

Waist Circumference (cm) a, b, c, d

69.8

± 7.7

83.7

± 8.5

99.8

± 11.9

68.1

± 7.2

79.4

± 7.4

94.7

± 16.4

Waist-height ratio a, b, c

0.415

± 0.04

0.497

± 0.05

0.590

± 0.07

0.435

± 0.04

0.507

± 0.05

0.605

± 0.10

Screen time (TV viewing and computer use) hour/day b

5.25

± 3.2

5.29

± 3.3

5.5

± 3.4

6.60

± 3.6

6.53

± 3.3

6.56

± 3.9

METs-min/week of Moderate –intensity physical activity b

1016.3

± 1185.9

1044.9

± 1097.9

1054.4  ± 1166.5

721.3

± 833.6

826.1

± 909.4

791.4  ± 1005.6
METs-min/week of Vigorous –intensity physical activity a, b, c, d

2457.1

± 2761.1

2067.1

± 2292.5

1757.1

± 2130.2

564.7

± 910.6

574.9

± 924.9

482.3

± 625.7

Total METs-min/week a, b, c, d

3365.4

± 3485.8

3022.4

± 2869.2

2699.9

± 2793.7

1194.0

± 1413.9

1280.3

± 1512.3

1202.4

± 1363.8

Breakfast consumption (frequency/week) a, b, c

3.94

± 2.7

3.52

± 2.7

3.35

± 2.7

3.46

± 2.6

3.08

± 2.5

3.79

± 2.6

Vegetables Consumption (frequency/week) a

3.77

± 2.4

3.67

± 2.4

3.62

± 2.4

3.62

± 2.4

3.67

± 2.4

3.65

± 2.4

Fruits Consumption

(frequency/week) a, b

3.27

± 2.2

3.40

± 2.4

3.16

± 2.3

2.47

± 2.1

2.71

± 2.2

2.51

± 2.1

Milk/diary products intake (frequency/week) a, b, c

4.45

± 2.4

4.21

± 2.5

4.07

± 2.5

3.71

± 2.5

3.77

± 2.5

3.26

± 2.6

Sugar-sweetened drinks (frequency/week) b, c, d

4.82

± 2.3

4.52

± 2.5

4.76

± 2.3

4.36

± 2.3

4.19

± 2.3

3.78

± 2.3

Fast foods (frequency/week) b

2.93

± 1.9

2.82

± 2.1

2.89

± 2.0

2.68

± 1.8

2.69

± 2.0

2.89

± 2.0

French fries/potato chips (frequency/week) b, c

2.51

± 2.1

2.39

± 2.1

2.49

± 2.1

2.99

± 2.0

2.55

± 2.0

2.60

± 2.0

Cake/donuts (frequency/week) c

2.55

± 2.1

2.29

± 2.0

2.39

± 2.0

2.89

± 2.1

2.52

± 1.9

2.32

± 1.9

Sweets (frequency/week) b, c, d

3.19

± 2.3

2.85

± 2.3

2.84

± 2.3

4.19

± 2.3

3.67

± 2.2

3.18

± 2.1

Energy drinks (frequency/week) b

1.51

± 2.1

1.61

± 2.2

1.59

± 2.2

0.89

± 1.7

0.91

± 1.7

0.82

± 1.6

Data are means and standards deviations and were analyzed by ANCOVA controlling for age.

ap < 0.05 for the effect of age.

bp < 0.05 for the main effect of sex.

cp < 0.05 for the main effect of BMI category.

dp < 0.05 for the effect of the interaction sex × BMI category.

Al-Hazzaa et al.

Al-Hazzaa et al. BMC Public Health 2012 12:354   doi:10.1186/1471-2458-12-354

Open Data