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Table 1 Mean values of daily intakes of nutrients and Spearman correlation coefficients between values derived from the 3-day food record and the FFQ at week 0 of the nutritional intervention (n = 71).

From: Validity and reproducibility of an interviewer-administered food frequency questionnaire for healthy French-Canadian men and women

  Dietary record FFQ Difference (%)a Unadjusted Energy-adjusted
Energy (kcal) b 2055 ± 521 2143 ± 568 4.3 0.29**  
Protein (g) 81.3 ± 16.4 82.6 ± 23.3 1.6 0.27* 0.36**
CHO (g) 245.0 ± 58.9 242.2 ± 60.5 -1.1 0.40** 0.60***
Lipids (g) b 80.1 ± 34.4 90.0 ± 34.8* 12.4 0.29* 0.56***
SFA (g) b 27.1 ± 14.0 30.0 ± 12.7 10.7 0.30** 0.56***
MUFA (g) b 33.9 ± 14.3 39.0 ± 16.3** 15.0 0.26* 0.48***
PUFA (g) b 13.1 ± 6.0 14.4 ± 7.0 9.9 0.38** 0.46***
EPA (g) b 0.06 ± 0.07 0.05 ± 0.04 -16.7 0.33** 0.33**
DHA (g) b 0.17 ± 0.23 0.12 ± 0.08 -29.4 0.30** 0.30**
Trans fat (g) b 3.4 ± 2.0 3.6 ± 2.6 5.9 0.45*** 0.56***
Cholesterol (mg) b 280.1 ± 139.8 300 ± 116 7.5 0.30** 0.36**
Dietary fiber (g) 21.9 ± 6.4 19.7 ± 5.0* -10.0 0.32** 0.38**
Soluble fiber (g) 7.3 ± 2.0 6.6 ± 1.7** -9.6 0.22 0.27*
Insoluble fiber (g) 14.4 ± 4.7 13.2 ± 3.5 -8.3 0.32** 0.37**
Alchool (g) b 11.4 ± 11.2 10.9 ± 10.7 -4.4 0.61*** 0.66***
Vitamin C (mg) 138.5 ± 57.3 137.0 ± 62.2 -1.1 0.19 0.19
Folate (mcg) 394.6 ± 115.4 383.2 ± 107.1 -2.9 0.32** 0.39**
Calcium (mg) 898.4 ± 320.5 962.3 ± 399.8 7.1 0.49*** 0.56***
Iron (mg) b 15.1 ± 4.3 14.1 ± 4.1 -6.6 0.43** 0.53***
  1. Value are means ± SD
  2. a (value derived from FFQ-value derived from 3-day food record)/(value derived from 3-day food record) × 100
  3. b Analyses were performed on log transformed values
  4. Significant difference between the two methods *p ≤ 0.05; **p ≤ 0.01; ***p ≤ 0.0001
  5. Correlations between FFQ and 3-day food record were statistically significant at * p ≤ 0.05; ** p ≤ 0.01; *** p ≤ 0.0001