Figure 2.

Differences between nutrient intake estimated from the food-frequency questionnaire (first administration) and from the 7-day food records plotted against the mean from the two methods (n = 460). For each participant, the difference in energy adjusted intakes between the FFQ (first administration) and the average of the 7-day food records is plotted against the mean intake from the two methods for: (a) Macronutrients, mean difference = 23.78 (95% CI of −30.27, 68.96), (b) energy (kcal), mean difference = 393.2 (95% CI of −441.3, 1228) with FFQ overestimating the nutrient intake compared to food diary.