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Table 4 Criteria validity: degree of association and level of agreement between average daily nutrient intakes estimated by the FFQ and the mean of 24HDR. (N = 76)

From: Validity and reliability of a food frequency questionnaire for community dwelling older adults in a Mediterranean country: Lebanon

 

FFQ

Mean ± SD

Median (IQR)

24HDR

Mean ± SD

Median (IQR)

P valuea

% Difference

% Agreement

Kappa coefficient

Correlation (Energy adjusted)

Calories (Cal)

1739 ± 5,331,686 (1387-2030)

1433 ± 3,871,371 (1126-1708)

< 0.001

19.3

88.2

0.75

 

Protein (g)

58.4 ± 20.8 56.2 (41. 6-69.2)

47.2 ± 15.3 43.5 (35.7-58.8)

< 0.001

21.1

81.6

0.62

0.626b

Fat (g)

84.6 ± 27.4 79.8 (68.2-102)

66.7 ± 21.2 63.3 (49.9-81.2)

< 0.001

23.6

86.8

0.73

0.595b

CHO (g)

196 ± 71.2188 (152-219)

167 ± 54.6154 (128-201)

< 0.001

16.4

85.5

0.70

0.719b

Sugars (g)

66.5 ± 32.7 60.4 (46.5-79.4)

44.4 ± 23.13 38.5 (28.3-53.6)

< 0.001

39.9

90.8

0.82

0.66b

Fibers (g)

19.3 ± 7.5 18.7 (14-22.6)

17.5 ± 8 16.1 (12.5-20)

0.071

9.5

69.7

0.39

0.56b

SAFA (% TEI)

12.4 ± 3 12.1 (10.7-14.7)

11 ± 3.7 10.9 (9.1-12.5)

< 0.001

11.7

73.7

0.47

0.36b

MUFA (% TEI)

20.2 ± 4.1 19.9 (17.5-23.4)

19.6 ± 5.5 19.6 (15.6-23.6)

0.199

3.1

80.3

0.60

0.446b

PUFA (% TEI)

8.4 ± 2.6 8 (6.8-9.6)

9.3 ± 4.1 8.9 (6.3-10.6)

0.081

−10.3

71.1

0.41

0.347b

ω3 FA (g)

0.85 ± 0.61 0.69 (0.41-1.11)

0.74 ± 0.69 0.53 (0.29-0.81)

0.010

13.7

80.3

0.61

0.519b

ω6/ω3 FA ratio

15.1 ± 8.5 12.6 (8.7-21.3)

18.3 ± 10.6 15.4 (9.5-24.6)

0.016

− 19.3

76.3

0.51

0.519b

Cholesterol (mg)

218 ± 123.4197 (120.5-294.3)

128.2 ± 105.6 85.4 (60.9-159)

< 0.001

51.9

73.7

0.48

0.43b

VIT A (μg)

905.1 ± 790.6677 (435-1135)

431.4 ± 320.1361 (203-539)

< 0.001

70.9

69.7

0.40

0.269

VIT D (μg)

1.4 ± 1.1 1.1 (0.7-1.7)

0.9 ± 1.2 0.5 (0.2-1.1)

< 0.001

9

76.3

0.53

0.459b

VIT E (mg)

11.3 ± 4.3 11.1 (8.6-13.8)

10 ± 4.6 9.2 (6.36-12)

0.001

13

82.9

0.65

0.602b

VIT K (μg)

271 ± 188,233 (127-365)

262 ± 317 88.3 (41.8-5)

0.206

3.2

73.7

0.48

0.413b

VIT C (mg)

98.2 ± 52.4 85.8 (62.7-1)

90.4 ± 63.4 75.6 (44.7-1)

0.286

8.3

81.6

0.63

0.443

VIT B1 (mg)

0.9 ± 0.3 0.93 (0.7-1.1)

0.9 ± 0.3 0.78 (0.6-1.1)

0.009

8.8

81.6

0.62

0.634b

VIT B2 (mg)

1.5 ± 0.6 1.5 (1.1-1.8)

1.1 ± 0.4 1 (0.8-1.2)

< 0.001

36.2

76.3

0.53

0.529b

VIT B3 (mg)

17.2 ± 6.6 17.2 (12.8-21.1)

15.1 ± 6.3 14.5 (11.8-17.4)

< 0.001

13.1

86.8

0.73

0.544b

VIT B6 (mg)

1.4 ± 0.47 1.4 (1-1.7)

1.12 ± 0.45 1.1 (0.8-1.3)

< 0.001

22.3

78.9

0.58

0.669b

VIT B9 (μg)

316 ± 129,296 (217-438)

285 ± 157,264 (173-360)

0.023

10.2

71.1

0.41

0.522b

VIT B12 (μg)

5.3 ± 6. 3.6 (2.5-5.6)

2.2 ± 2.1 1.8 (0.9-3)

< 0.001

84

61.8

0.24

0.17

Magnesium (mg)

324 ± 113,315 (244-393)

286 ± 109,265 (211-350)

0.002

12.5

80.3

0.60

0.638b

Calcium (mg)

695 ± 289,701 (475-914)

489 ± 217,468 (303-637)

< 0.001

34.8

84.2

0.68

0.568b

Iron (mg)

10.5 ± 3.8 10 (7.5-12.5)

9.7 ± 4.1 9.5 (6.3-11.8)

0.101

7.9

73.7

0.47

0.571b

Zinc (mg)

8.9 ± 3.3 8.3 (6.7-10.5)

7.04 ± 2.7 6.4 (5.2-8.5)

< 0.001

23.5

75

0.48

0.639b

Selenium (μg)

78.2 ± 27.6 74.7 (59.9-97.5)

64.3 ± 35.2 56.8 (41.3-86.6)

< 0.001

19.5

80.3

0.61

0.594b

  1. Abbreviations: FFQ Food frequency questionnaire, 24HDR Twenty-four hours dietary recall, % Percentage, Cal/d Calories per day, CHO Carbohydrates, SAFA Saturated fatty acids, MUFA Mono-unsaturated fatty acids, PUFA Poly-unsaturated fatty acids, % TEI Percentage from total energy intake, Vit Vitamin, ω3 FA Omega-3 fatty acids, ω6/ω3 FA ratio Omega 3 to omega 6 fatty acids ratio, IQR Interquartile range
  2. Relative percentage difference was calculated as (FFQ1 – Mean 24HDR)/Mean 24HDR) X100
  3. aWilcoxon signed rank test, significant with p < 0.05
  4. bCorrelations significant with p < 0.01
  5. cCorrelations significant with p < 0.05
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Nutrition Journal

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