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Table 2 Dietary intakes of study participants across tertiles of dTACa

From: The association between dietary total antioxidant capacity and odds and severity of irritable bowel syndrome among Iranian adults: a cross-sectional study

 

Tertiles of dTAC

P valueb

T1

(N = 971)

T2

(N = 1008)

T3

(N = 1008)

Nutrients

 Energy intake (kcal/d)

1842.0 ± 22.6

2426.0 ± 22.1

2859.9 ± 22.2

 < 0.001

 Carbohydrate (g/d)

280.4 ± 1.64

294.4 ± 1.48

306.8 ± 1.59

 < 0.001

 Protein g/d)

91.2 ± 0.47

88.3 ± 0.42

85.4 ± 0.46

 < 0.001

 Fat (g/d)

102.0 ± 0.64

98.2 ± 0.57

95.7 ± 0.62

 < 0.001

 Fiber (g/d)

20.1 ± 0.19

22.3 ± 0.17

25.3 ± 0.18

 < 0.001

 SFA (g/d)

18.8 ± 7.61

23.8 ± 9.00

26.9 ± 8.92

0.01

 Vitamin A (RAE/d)

480.3 ± 7.00

517.3 ± 6.29

559.6 ± 6.77

 < 0.001

 Vitamin C (mg/day)

74.5 ± 1.66

99.3 ± 1.50

130.3 ± 1.61

 < 0.001

 Vitamin D (μg/d)

0.97 ± 0.01

0.96 ± 0.02

0.97 ± 0.02

0.70

 Vitamin E (mg/d)

22.7 ± 0.20

21.1 ± 0.18

20.6 ± 0.20

 < 0.001

 Vitamin B1 (mg/d)

1.86 ± 0.02

1.89 ± 0.02

1.79 ± 0.02

 < 0.001

 Vitamin B6 (mg/d)

1.94 ± 0.01

1.97 ± 0.01

2.03 ± 0.01

 < 0.001

 Folate (μg/day)

286.0 ± 2.50

317.1 ± 2.25

358.1 ± 2.42

 < 0.001

 Vitamin B12 (μg/day)

3.04 ± 0.04

2.97 ± 0.03

2.87 ± 0.03

0.01

 Calcium (mg/day)

965.7 ± 14.7

1012.2 ± 13.2

962.5 ± 14.2

0.01

 Fe (mg/day)

18.0 ± 0.11

17.8 ± 0.10

17.1 ± 0.11

 < 0.001

 Zinc (mg/day)

11.3 ± 0.06

11.1 ± 0.05

10.9 ± 0.06

 < 0.001

Food groups

 Fruits (g/d)

177.3 ± 7.07

301.9 ± 6.35

469.0 ± 6.84

 < 0.001

 Vegetables (g/d)

219.7 ± 4.07

237.5 ± 3.65

259.9 ± 3.93

 < 0.001

 White meat (g/d)

69.4 ± 1.51

62.6 ± 1.36

58.9 ± 1.46

 < 0.001

 Red and processed meat (g/d)

92.6 ± 1.55

82.7 ± 1.39

78.08 ± 1.49

 < 0.001

Nuts, legumes and soy (g/d)

59.1 ± 1.26

56.0 ± 1.13

56.6 ± 1.22

0.18

 Refined grains (g/d)

438.9 ± 5.60

403.2 ± 5.03

338.2 ± 5.41

 < 0.001

 Whole grains (g/d)

34.1 ± 2.62

42.2 ± 2.36

51.1 ± 2.54

 < 0.001

 Dairy intake (g/d)

331.6 ± 9.10

356.6 ± 8.20

357.5 ± 8.80

0.09

 Tea and coffee (g/d)

158.0 ± 8.08

355.7 ± 7.26

625.3 ± 7.82

 < 0.001

 Pickles (g/d)

7.10 ± 0.61

8.90 ± 0.55

10.84 ± 0.59

 < 0.001

  1. aData are means ± standard error (SE), unless indicated
  2. bAll values were adjusted for age, sex and energy, except for dietary energy intake, which was only adjusted for age and sex using ANCOVA
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BMC Gastroenterology

ISSN: 1471-230X

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