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Table 3 Characteristics of the study participants based on CQI tertiles

From: The association of dietary carbohydrate quality and quantity with obesity among Iranian adolescents: a case-control study

 

CQI

P-value

Variables

T1 (N = 128)

T2 (N = 145)

T3 (N = 133)

Age (year)

16.21 ± 0.68

16.32 ± 0.59

16.25 ± 0.70

0.409

BMI (kg/m2)

29.08 ± 4.47

25.03 ± 4.26

21.29 ± 2.12

< 0.001

WC (cm)

94.09 ± 11.87

82.84 ± 9.70

75.65 ± 4.99

< 0.001

Sex, boy (%)

71.9

21.4

65.4

< 0.001

Physical activity (%)

   

< 0.001

Low

Moderate

High

10.9

47.7

41.4

14.5

64.8

20.7

11.3

42.9

45.9

 

Income (%)

   

0.032

Low

Moderate

High

60.9

35.2

3.9

46.9

49.0

4.1

44.4

47.4

8.2

 

Energy (kcal)

2915.57 ± 225.16

2630.36 ± 207.84

2595.57 ± 127.53

< 0.001

Protein (g/day)

102.48 ± 7.80

92.90 ± 8.22

92.32 ± 5.37

< 0.001

Fat (g/day)

102.36 ± 11.54

92.43 ± 9.39

82.71 ± 3.90

< 0.001

Whole cereals (g/day)

16.81 ± 3.63

21.95 ± 4.09

28.06 ± 7.52

< 0.001

Total cereals (g/day)

93.56 ± 4.83

92.45 ± 7.43

101.51 ± 9.24

< 0.001

Liquid CHO (g/day)

15.01 ± 2.29

11.88 ± 1.82

10.89 ± 1.09

< 0.001

Solid CHO (g/day)

135.72 ± 3.63

136.35 ± 5.68

146.42 ± 6.93

< 0.001

GI

63.38 ± 1.16

61.87 ± 1.75

61.27 ± 1.42

< 0.001

  1. CQI: carbohydrate quality index; BMI: body mass index; WC: waist circumference; CHO: carbohydrate; GI: glycemic index
  2. Values are mean ± standard deviation or percent
  3. P-value less than 0.05 was considered significant
  4. One-way ANOVA and chi-square have been used
  5. Significant values are shown in bold