children consumed at school so that the parents/proxies
could include it in the diaries. For the current analyses
diaries containing insufficiently detailed descriptions of
the food products and portion sizes consumed (e.g.
when the parents did not include descriptors like ‘low
fat’ or ‘whole grain’ in their diaries or when they did not
include portion sizes (no standard units or grams)) were
excluded. Thus, only good quality food diaries, including
three completed record days were included (n = 696;
66% of collected diaries). Two dietitians, with longstanding
experience in nutritional epidemiological fieldwork,
performed this exclusion procedure of the EDR.