Table 3 Test–retest reliability of energy-adjusted nutrient values between two assessment timepoints for both, FFQ7d and FFQ24h
From: Nutrient scoring for the DEGS1-FFQ – from food intake to nutrient intake
FFQ7d BL1 ~ BL2 | FFQ24h BL1 ~ BL2 | |||
|---|---|---|---|---|
Energy-adjusted nutrient value | Pearson’s rho | ICC kappa (ICC2) [lower bound, upper bound] | Pearson’s rho | ICC kappa (ICC2) [lower bound, upper bound] |
Protein | 0.50 | 0.50 [0.32, 0.64] | 0.30 | 0.33 [0.13, 0.51] |
Fat | 0.33 | 0.36 [0.16, 0.53] | 0.38 | 0.37 [0.17, 0.53] |
Carb | 0.54 | 0.50 [0.33, 0.65] | 0.24 | 0.24 [0.03, 0.42] |
Fiber | 0.64 | 0.62 [0.47, 0.73] | 0.45 | 0.46 [0.28, 0.61] |
Sugar | 0.61 | 0.62 [0.42, 0.75] | 0.13 | 0.11 [-0.08, 0.30] |