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EPIC-Norfolk
uses three different methods to record participant’s diet:
The
7DD is our main tool for studying the diet of EPIC-Norfolk participants
while FFQs have been developed by all of the EPIC centres and are used
for combined analyses on the international cohort. Further information
about the various stages of the study and when questionnaires were sent
out can be found in the timetable
section.
Suites
of programs and databases (DINER and DINERMO) have been developed
within EPIC-Norfolk to convert diary information into nutrient data,
and are described in the data
processing section.
The
accuracy of our dietary assessment methods were measured using
biological markers (biomarkers). The papers discussing these are
outlined in the validation
and calibration
sections.
For further information about our nutritional methods, see this
paper (link is to PubMed abstract). |
