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Table 5 Nutrient intake validity between R24 and FFQ.1

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)0.874**0.866 (0.809–0.907) 0.865 (0.810–0.905)
Proteins (g)0.649**0.619 (0.478–0.854)0.892 (0.846–0.926)0.892 (0.845–0.925)
Fats (g)0.772**0.771 (0.681–0.839)0.875 (0.822–0.913)0.874 (0.821–0.913)
Carbohydrates (g)0.815**0.794 (0.682–0.864)0.763 (0.643–0.841)0.761 (0.671–0.967)
Ca (mg)0.654**0.564 (0.392–0.692)0.510 (0.333–0.648)0.508 (0.384–0.613)
P (mg)0.713**0.654 (0.415–0.788)0.499 (0.156–0.698)0.496 (0.370–0.604)
Na (mg)0.889**0.825 (0.680–0.897)0.810 (0.660–0.887)0.809 (0.736–0.863)
K (mg)0.804**0.855 (0.747–0.912)0.804 (0.678–0.876)0.802 (0.725–0.859)
Fe (mg)0.548**0.478 (0.307–0.618)0.443 (0.277–0.584)0.441 (0.307–0.558)
Tiamin (mg)0.879**0.861 (0.675–0.914)0.233(− 0.034–0.593)0.231 (0.174–0.288)
Riboflavin (mg)0.796**0.880 (0.807–0.923)0.408 (0.203–0.572)0.406 (0.260–0.534)
Vitamin B6 (mg)0.820**0.807 (0.718–0.868)0.764 (0.664–0.835)0.762 (0.671–0.831)
Folic Acid (μg)0.829**0.806 (0.698–0.873)0.760 (0.639–0.840)0.758 (0.668–0.827)
Vitamin B12 (μg)0.578**0.528 (0.164–0.727)0.774 (0.681–0.842)0.772 (0.682–0.839)
Vitamin C (μg)0.769**0.745 (0.504–0.857)0.708 (0.452–0.832)0.706 (0.608–0.783)
Vitamin A (μg)0.1200.025(−0.148–0.201)0.08(− 0.163–0.185)0.09(− 0.028–0.045)
Vitamin D (μg)0.141− 0.025(− 0.217–0.167)0.08(− 0.163–0.144)0.096(− 0.082–0.267)
  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