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Table 2 Dietary intake of study participants among the quartiles of GI & GL

From: Higher dietary glycemic load is inversely associated with stress prevalence among Iranian adults

Quartiles of GI

Quartiles of GL

 

Total

Q1

Q2

Q3

Q4

P-value I

Q1

Q2

Q3

Q4

P-value

Nutrients

 Energy intake (kcal)

2897 ± 1378

2438 ± 1061a

2864 ± 1351b

3634 ± 1351b

2897 ± 1378b

< 0.001

1646 ± 419.3a

2199 ± 494.1b

3019 ± 744.9b

4721 ± 1111b

< 0.001

 Protein (% of total daily energy)

16.16 ± 0.04

16.82 ± 0.04a

16.73 ± 0.03

16.24 ± 0.04b

14.86 ± 0.04b

< 0.001

17.84 ± 0.04a

16.59 ± 0.03b

16.11 ± 0.03b

14.10 ± 0.04b

< 0.001

 Carbohydrate (% of total daily energy)

56.12 ± 0.09

53.81 ± 0.08a

54.58 ± 0.08

56.00 ± 0.08b

60.09 ± 11.21b

< 0.001

52.55 ± 0.07a

55.40 ± 0.07b

55.87 ± 0.09b

60.67 ± 0.10b

< 0.001

 Fat (% of total daily energy)

33.61 ± 0.09

32.90 ± 0.07a

32.67 ± 0.07

32.85 ± 0.07

0.36 ± 0.12b

< 0.001

33.24 ± 0.06a

31.53 ± 0.06b

33.38 ± 0.09

36.28 ± 0.11b

< 0.001

 Cholesterol (mg)

394.8 ± 391.3

363.5 ± 396.1a

394.1 ± 326.6

391.1 ± 336.4

430.6 ± 483.4b

< 0.001

286.3 ± 322.9a

318.4 ± 206.4

432.7 ± 390.9b

542 ± 521.8b

< 0.001

 SFA (g)

31.04 ± 18.36

27.13 ± 15.36a

29.58 ± 17.43b

30.48 ± 17.28b

36.98 ± 21.39b

< 0.001

19.56 ± 9.62a

24.3 ± 11.47b

32.47 ± 15.22b

47.8 ± 20.82b

< 0.001

 Vitamin E (mg/day)

11.36 ± 11.66

11.92 ± 11.85

11.52 ± 11.80

10.98 ± 12.02

11.01 ± 10.92

0.038

7.70 ± 7.16a

9.55 ± 8.93b

12.72 ± 13.28b

15.45 ± 14.19b

< 0.001

 Vitamin C (mg)

210.5 ± 188.7

196.2 ± 169a

218.3 ± 214.3b

219.2 ± 169.6b

208.5 ± 197.1

< 0.001

115.1 ± 54.12a

166.8 ± 92b

243.2 ± 148.4b

317.1 ± 292.6b

< 0.001

 Folic acid (µg)

379.8 ± 228

354.6 ± 215.5a

361.9 ± 217.7

370.8 ± 216.6

432.1 ± 251.8b

< 0.001

230.7 ± 93.18a

300 ± 127.6b

410.8 ± 193.8b

577.8 ± 276.8b

< 0.001

 Magnesium (mg)

339.3 ± 179.6

309.6 ± 155.2a

322.9 ± 166.2

336.2 ± 180.7b

339.3 ± 179.6b

< 0.001

199.7 ± 58.38a

262.8 ± 79.31b

359 ± 125.2b

535.7 ± 198.7b

< 0.001

Food groups (g/1000 kcal)

 Fruits

184.3 ± 138.4

205.6 ± 145.1a

202.3 ± 141.8

192.3 ± 130.3b

136.9 ± 124.1b

< 0.001

187.8 ± 109.9a

204.8 ± 128.1b

202.8 ± 151.3b

184.3 ± 138.4b

< 0.001

 Vegetables

96.6 ± 77.29

112 ± 82.82a

104.1 ± 78.03b

97.77 ± 75.50b

72.76 ± 66.25b

< 0.001

119.6 ± 81.3a

104.7 ± 69.75b

96.78 ± 81.41b

65.57 ± 65.10b

< 0.001

 Red meat

20.46 ± 18.37

22.60 ± 17.77a

24.60 ± 21.13b

20.12 ± 16.43b

14.51 ± 16.16b

< 0.001

25.29 ± 20.43a

23.65 ± 16.75b

20.90 ± 19.34b

11.99 ± 13.15b

< 0.001

 Fish

7 ± 13.56

5.90 ± 11.50a

6.70 ± 12.80

7.48 ± 14.42b

7.91 ± 15.14b

< 0.001

5.85 ± 9.99a

5.65 ± 10.98

7.65 ± 14.93b

8.85 ± 16.90b

< 0.001

 Dairy

89.84 ± 60.16

106.99 ± 76.74a

94.95 ± 53.32b

89.96 ± 53.41b

67.47 ± 45.57b

< 0.001

104.2 ± 53.30a

95.85 ± 52.83b

86.20 ± 59.35b

73.09 ± 69.35b

< 0.001

 Legumes and nuts

25.20 ± 19.14

29.78 ± 25.53a

25.64 ± 18.63b

24.07 ± 14.99b

21.31 ± 14.35b

< 0.001

27.80 ± 18.12a

25.24 ± 18.01b

25.30 ± 20.19b

22.46 ± 19.80b

< 0.001

 Whole grains

29.95 ± 27.33

26.68 ± 20.58a

32.32 ± 24.55b

33.81 ± 27.92b

27.01 ± 33.82

< 0.001

34.97 ± 24.53a

37.83 ± 28.35b

29.25 ± 28.89b

17.77 ± 22.65b

< 0.001

 Refined grains

85.67 ± 58.18

126.70 ± 66.74a

93.05 ± 47.27b

67.95 ± 41.92b

55 ± 45.87b

< 0.001

100.5 ± 54a

102 ± 49.75

82.02 ± 59.34b

58.11 ± 58.05b

< 0.001

 Sugars

12.63 ± 11.64

10.21 ± 7.58a

11.88 ± 9.05b

13.36 ± 11.61b

15.07 ± 15.98b

< 0.001

12.14 ± 9.27

12.74 ± 9.42

12.80 ± 12.58

12.84 ± 14.47

0.210

 Salt

2.94 ± 3.68

3.21 ± 2.94a

3.22 ± 3.45

3.14 ± 3.89

2.21 ± 4.21b

< 0.001

4.24 ± 3.83a

3.61 ± 3.11b

2.41 ± 3.37b

1.52 ± 3.73b

< 0.001

  1. GI glycemic index, GL glycemic load
  2. IObtained from one-way ANOVA followed by Bonferroni post-hoc test
  3. aFirst quartile is considered as reference quartile
  4. bSignificant difference between quartile with reference quartile (P value < 0.05)