Difference between the observed and the weighed amount by serving method (country)—Modified Bland-Altman.

<p>a) Total energy (kcal) content in served meal, Iceland (served by canteen staff); b) Total energy (kcal) content in leftovers, Iceland; c) Total energy (kcal) content in served meal, Sweden (selfserving); d) Total energy (kcal) content in leftovers, Sweden.</p

Study design–procedure in each country.

<p>Study design–procedure in each country.</p

Example of served and leftover plates of the same meal.

<p>Serving left, leftovers right.</p

Agreement¹ of amount (g) and energy content (kcal) estimated by photomethod with weighed method—by country.

<p>Agreement<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0163970#t001fn001" target="_blank">¹</a> of amount (g) and energy content (kcal) estimated by photomethod with weighed method—by country.</p