Table 4.

Test–retest reliability of energy-adjusted nutrient values between 7 days and 24 h FFQ

	FFQ7d ~ FFQ24h
Energy-adjusted nutrient value	Pearson’s rho	ICC kappa (ICC2) [lower bound, upper bound]
Protein	0.57	0.46 [0.33, 0.57]
Fat	0.58	0.40 [0.27, 0.52]
Carb	0.55	0.39 [0.25, 0.51]
Fiber	0.54	0.41 [0.28, 0.53]
Sugar	0.62	0.50 [0.37, 0.60]