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Table 6 Nutrient intake validity between R24 and FFQ.2

From: Design and validation of a food frequency questionnaire (FFQ) for the nutritional evaluation of food intake in the Peruvian Amazon

Energy and nutrientsraICCb (CI 95%)CCCc (CI 95%)
UnadjustedAdjusted
Energy (Kcal)0.871**0.864 (0.806–0.906) 0.863 (0.807–0.904)
Proteins (g)0.772**0.781 (0.668–0.854)0.884 (0.827–0.922)0.883 (0.834–0.919)
Fats (g)0.775**0.769 (0.679–0.837)0.840 (0.773–0.888)0.838 (0.773–0.886)
Carbohydrates (g)0.880**0.840 (0.706–0.906)0.855 (0.766–0.907)0.853 (0.794–0.897)
Ca (mg)0.212*0.102(− 0.056–0.268)0.046(− 0.058–0.167)0.045(− 0.038–0.128)
P (mg)0.731**0.589 (0.259–0.762)0.050(− 0.054–0.172)0.049(− 0.028–0.126)
Na (mg)0.911**0.872 (0.752–0.927)0.865 (0.741–0.923)0.864 (0.809–0.904)
K (mg)0.773**0.773 (0.629–0.857)0.723 (0.553–0.824)0.721 (0.622—0.798)
Fe (mg)0.504**0.450 (0.277–0.593)0.383 (0.195–0.542)0.381 (0.242–0.505)
Tiamin (mg)0.808**0.798 (0.710–0.860)0.207(− 0.046–0.548)0.205 (0.148–0.261)
Riboflavin (mg)0.907**0.834 (0.738–0.958)0.378 (0.04–0.743)0.376 (0.300–0.446)
Vitamin B6 (mg)0.764**0.818 (0.742–0.873)0.786 (0.701–0.849)0.784 (0.701–0.847)
Folic Acid (μg)0.843**0.858 (0.792–0.895)0.846 (0.772–0.895)0.844 (0.781–0.891)
Vitamin B12 (μg)0.628**0.747 (0.629–0.827)0.824 (0.752–0.877)0.823 (0.751–0.876)
Vitamin C (μg)0.751**0.765 (0.647–0.843)0.700 (0.570–0.792)0.698 (0.589–0.782)
Vitamin A (μg)− 0.11− 0.11(− 0.190–0.173)0.019(− 0.199–0.165)− 0.019(− 0.05–0.012)
Vitamin D (μg)0.08− 0.026(− 0.218–0.166)− 0.069(− 0.218–0.094)− 0.068(− 0.154–0.019)
  1. ar, Pearson’s correlation coefficient, level of statistical significance: *P < 0.05, **p < 0.01
  2. bICC Intraclass correlation coefficient
  3. cCCC Lin’s concordance correlation coefficient