Table 3

Lifestyle-related variables among Saudi adolescents stratified by sex and waist to height ratio (WHtR) categories
Variable Male Female
WHtR < 0.5 WHtR ≥ 0.5 WHtR < 0.5 WHtR ≥ 0.5
Age (years) b

16.7

± 1.1

16.8

± 1.1

16.5

± 1.0

16.5

± 1.1

Weight (kg) a, b, c, d

58.8

± 10.9

89.8

± 18.5

51.7

± 9.8

72.2

± 16.7

Height (cm) a, b, d

168.1

± 7.3

168.8

± 6.8

156.9

± 5.7

156.0

± 6.3

BMI (kg/m2) a,b, c, d

20.8

± 3.4

31.4

± 5.7

20.9

± 3.7

29.6

± 6.3

Waist circumference (cm) b, c, d

70.3

± 7.5

96.5

± 10.9

67.7

± 6.3

88.9

± 12.8

Waist to height ratio b, c, d

0.418

± 0.04

0.572

± 0.06

0.432

± 0.04

0.570

± 0.08

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

5.32

± 3.3

5.32

± 3.2

6.59

± 3.5

6.56

± 3.7

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

1005.1

± 1086.1

991.9

± 1086.2

734.3

± 861.7

799.1

± 912.2

METs-min/week of vigorous-intensity physical activity a, b, c, d

2366.5

± 2454.7

1763.9

± 2066.5

573.7

± 930.2

515.1

± 753.7

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

3266.2

± 3034.5

2659.1

± 2670.6

1210.3

± 1447.5

1224.7

± 1387.9

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

3.89

± 2.7

3.39

± 2.7

3.47

± 2.6

2.85

± 2.5

Vegetable consumption (frequency/week) a

3.78

± 2.4

3.58

± 2.3

3.68

± 2.4

3.53

± 2.3

Fruit consumption

(frequency/week) a,b

3.30

± 2.3

3.19

± 2.2

2.52

± 2.1

2.53

± 2.2

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

4.47

± 2.4

4.92

± 2.5

3.73

± 2.5

3.49

± 2.5

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

4.80

± 2.4

4.65

± 2.4

4.34

± 2.4

4.02

± 2.3

Fast food intake b

(frequency/week)

2.94

± 1.9

2.82

± 2.0

2.66

± 1.8

2.54

± 1.9

French fries/potato chip intake b, c (frequency/week)

2.49

± 2.1

2.47

± 2.0

2.93

± 2.0

2.61

± 2.0

Cake/donut intake b, c

(frequency/week)

2.52

± 2.1

2.35

± 2.0

2.84

± 2.1

2.51

± 1.9

Sweet intake (frequency/week) b, c, d

3.14

± 2.3

2.87

± 2.3

4.14

± 2.3

3.49

± 2.2

Energy drink intake b

(frequency/week)

1.49

± 2.1

1.65

± 2.3

0.89

± 1.7

0.88

± 1.7

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 WHtR category.

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

Al-Hazzaa et al.

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

Open Data