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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 nutrients

ra

ICCb (CI 95%)

CCCc (CI 95%)

Unadjusted

Adjusted

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)

0.120

0.025(−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