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Table 2 Comparison of nutrient intakes estimated by the FFQ and the average of six 24-h DRs (n = 238)

From: Development and validation of a quantitative food frequency questionnaire to assess dietary intake among Lebanese adults

 

Mean nutrient intakes (FFQ)

Mean energy-adjusted nutrient intakes (FFQ)

Mean nutrient intakes (DRs)

Mean energy-adjusted nutrient intakes (DRs)

Mean percent differenceb

Mean percent difference (energy-adjusted)b

Unadjusted Pearson correlation

FFQ vs DRs

Adjustedc,d Pearson correlation

FFQ vs DRs

Energy Intake (Kcal)

2494.2 (656.9)

2494.2 (656.9)

1736.9 (517.9)

1736.9 (517.9)

50.57

50.57

0.52**

0.32**

Carbohydrates (%)

47.3 (6.0)

47.3 (6.0)

48.8 (7.0)

48.8 (7.0)

−1.49

−1.49

0.27**

0.28**

Carbohydrates (g)a

299.4 (81.0)

120.8 (15.7)

211.1 (68.8)

122.1 (19.4)

50.85

1.45

0.49**

0.14*

Sugars (% of total CHO)

27.5 (9.5)

27.5 (9.5)

25.2 (9.3)

25.2 (9.3)

29.39

29.39

0.26**

0.25**

Sugars (g)a

80.0 (31.1)

32.7 (11.2)

53.1 (27.2)

30.4 (12.0)

101.93

29.90

0.36**

0.23**

Fat (%)

35.8 (5.3)

35.8 (5.3)

35.2 (6.5)

35.2 (6.5)

5.43

5.43

0.19**

0.19**

Fat (g)a

102.2 (32.9)

40.7 (6.0)

68.5 (25.4)

39.3 (7.9)

65.04

11.15

0.42**

0.11

Saturated FA (%)

8.5 (1.8)

8.5 (1.8)

8.0 (2.4)

8.0 (2.4)

16.05

16.05

0.13

0.12

Saturated FA (g)a

23.9 (7.8)

9.6 (2.0)

15.9 (7.9)

9.1 (3.7)

81.01

18.48

0.25**

0.08

Monounsaturated FA(%)

13.7 (3.1)

13.7 (3.1)

12.3 (3.4)

12.3 (3.4)

19.34

19.34

0.16*

0.17*

Monounsaturated FA(g)a

38.7 (14.1)

15.5 (3.6)

24.1 (10.7)

13.8 (3.9)

87.60

22.83

0.31**

0.15*

Polyunsaturated FA (%)

5.7 (1.4)

5.7 (1.4)

5.5 (1.9)

5.5 (1.9)

16.68

16.68

0.06

0.08

Polyunsaturated FA (g)a

16.1 (6.1)

6.4 (1.6)

10.6 (5.3)

6.1 (2.0)

89.07

22.16

0.23**

0.08

Cholesterola

234.8 (116.3)

94.1 (39.9)

129.5 (94.0)

73.9 (46.3)

157.53

68.26

0.38**

0.27**

Proteins (%)

15.7 (3.0)

15.7 (3.1)

15.3 (2.9)

15.3 (2.9)

5.74

5.74

0.31**

0.31**

Proteins (g)a

100.1 (33.5)

40.1 (7.5)

66.1 (22.8)

38.3 (8.2)

61.46

7.72

0.50**

0.27**

Fibersa

28.9 (9.9)

11.8 (3.3)

18.5 (8.6)

10.8 (4.1)

79.90

21.17

0.35**

0.32**

Alcohol (g)a

4.6 (9.45)

1.7 (3.4)

1.8 (5.4)

0.9 (2.6)

155.40

75.69

0.60**

0.59**

Alcohol (%)

1.2 (2.4)

1.2 (2.4)

0.6 (1.8)

0.6 (1.8)

84.00

84.00

0.65**

0.64**

Vitamin A (RAE)a

1286.9 (1165.3)

511.5 (405.6)

280.1 (285.8)

161.8 (150.0)

1689.89

756.04

0.05

0.02

Vitamin Da

9.4 (1.8)

4.0 ± (1.1)

8.3 (1.6)

5.1 (1.5)

15.82

−17.86

0.21**

0.18**

Vitamin Ea

14.2 (8.4)

5.7 (3.0)

7.0 (3.7)

4.1 (1.9)

142.61

62.66

0.36**

0.36**

Vitamin Ca

124.7 (59.8)

51.8 (24.8)

95.1 (67.1)

56.4 (39.4)

94.16

30.05

0.27**

0.28**

Thiamina

2.1 (0.9)

0.8 (0.3)

1.3 (0.5)

0.8 (0.2)

70.32

14.83

0.33**

0.26**

Riboflavina

9.2 (15.0)

3.4 (4.5)

1.6 (1.3)

0.9 (0.6)

563.02

323.04

0.07

−0.02

Niacina

27.3 (12.7)

10.9 (4.2)

19.1 (7.6)

11.2 (3.8)

55.81

5.16

0.37**

0.28**

Pantothenic acida

7.9 (5.2)

3.2 (2.00)

3.9 (2.2)

2.3 (1.3)

125.03

53.73

0.28**

0.27**

Vitamin B6a

2.5 (1.2)

1.0 (0.4)

1.5 (0.8)

0.9 (0.4)

97.66

33.31

0.50**

0.49**

Folatea

503.4 (259.1)

205.1 (94.1)

338.8 (198.7)

198.4 (102.6)

84.36

23.91

0.47**

0.46**

Vitamin B12a

6.5 (4.6)

2.6 (1.6)

3.5 (2.7)

2.0 (1.5)

208.69

102.29

0.30**

0.28**

Magnesiuma

411.8 (137.5)

167.4 (41.8)

236.2 (96.2)

138.1 (48.4)

95.39

31.22

0.38**

0.33**

Calciuma

1046.2 (338.9)

428.1 (124.9)

683.1 (339.4)

398.1 (169.9)

79.97

21.37

0.36**

0.26**

Phosphorusa

1583.4 (460.6)

638.3 (102.0)

1014.6 (354.6)

588.6 (131.2)

68.88

12.27

0.45**

0.31**

Potassiuma

3298.5 (998.3)

1346.5 (314.1)

2279.9 (848.5)

1338.5 (443.8)

62.40

8.03

0.31**

0.25**

Sodiuma

5666.4 (1049.9)

2352.6 (417.7)

4562.4 (838.5)

2763.1 (588.5)

26.35

−11.97

0.40**

0.15*

Irona

22.5 (11.2)

9.0 (3.8)

15.4 (6.6)

8.9 (3.3)

59.48

8.10

0.39**

0.30**

Zinca

13.9 (8.4)

5.6 (3.1)

7.5 (4.1)

4.4 (2.1)

107.75

42.16

0.31**

0.28**

Coppera

1.8 (0.8)

0.7 (0.2)

1.0 (0.4)

0.6 (0.2)

110.00

37.85

0.28**

0.16*

Manganesea

4.2 (1.6)

1.5 (0.5)

2.6 (1.1)

1.5 (0.6)

84.29

24.53

0.38**

0.33**

Seleniuma

86.5 (48.9)

34.7 (16.0)

53.0 (29.2)

30.8 (14.4)

104.76

36.77

0.35**

0.34**

  1. FFQ food frequency questionnaire, DR dietary recall, RAE Retinol Activity Equivalent
  2. aintakes were adjusted using the nutrient density method (intake/total energy intake*1000). Energy intake and macronutrients expressed in % total energy intake were not adjusted. b Relative difference = [(FFQ - 24 h recall)/24 h recall]*100; Percentage difference: Good: 0.0–10.9%; Acceptable: 11.0–20.0%; Poor: > 20.0% **Correlation is significant at the 0.01 level (2-tailed); *. Correlation is significant at the 0.05 level (2-tailed) cAdjusted for energy intake, age and gender; dEnergy intake was adjusted for age and gender