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. 2017 Nov 1;234:38–45. doi: 10.1016/j.foodchem.2017.04.098

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© 2017 The Authors

This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

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Supplementary Figure 1 — Updated Sodium: Sodium intake as estimated by updated databases in diet diary analysis data versus duplicate diet analysis. New Sodium data was obtained from the UK Department of Health updated food composition dataset (PublicHealthEngland, 2015) Left panel, Bland and Altman plot (Bland & Altman, 1986) of the differences, DietPlan7 – duplicate diary, against the mean of the two estimates. Also shown is the bias given as the mean difference and the 95% limits of agreement (mean difference ± 2 × standard deviation). Central panel, scatterplot of DietPlan7 estimates against duplicate diary values. Also shown is the Pearson correlation between the two methods and the line of unity. Right panel, boxplots summarising the distribution of the two estimates.