Each line in part 1 of the FFQ is mapped to up to six food codes. Decisions regarding which food codes to use were based on data from UK government surveys and other UK population data.7 (link)
9
10 These decisions were based on data for individuals aged 40–74 years.7 (link) Data for portion weights were sourced from UK population data and weighed records in 40–74-year-old study participants.7 (link)
11
The EPIC-Norfolk FFQ uses 290 foods from the UK food composition database, McCance and Widdowson's ‘The Composition of Foods’ (5th edition) and its associated supplements.12–21 A number of new food items were added to the EPIC-Norfolk FFQ food list, which are used in the FETA and CAFÉ programmes. These include low-calorie/diet fizzy drinks and crunchy oat cereal, as well as modified home-baked and fried foods (without their fat), to enable an individual's fat type, as recorded in part 2 of the FFQ, to be incorporated. However, the nutrient data of six of the nine new foods used in the CAFÉ programme were modified in FETA. These foods include crunchy oat cereal, milk non-specific, low-calorie/diet fizzy drinks, solid vegetable oil, Crisp ‘n Dry (solid fat), and oil and fat non-specific. Modifications to the nutrient data were made to ensure a more accurate nutrient profile and/or to better reflect the foods consumed, in the case of non-specific items, such as milk and oil/fat; these changes relate to nutrient/food data at the time of FFQ completion.
9
10 These decisions were based on data for individuals aged 40–74 years.7 (link) Data for portion weights were sourced from UK population data and weighed records in 40–74-year-old study participants.7 (link)
11
The EPIC-Norfolk FFQ uses 290 foods from the UK food composition database, McCance and Widdowson's ‘The Composition of Foods’ (5th edition) and its associated supplements.12–21 A number of new food items were added to the EPIC-Norfolk FFQ food list, which are used in the FETA and CAFÉ programmes. These include low-calorie/diet fizzy drinks and crunchy oat cereal, as well as modified home-baked and fried foods (without their fat), to enable an individual's fat type, as recorded in part 2 of the FFQ, to be incorporated. However, the nutrient data of six of the nine new foods used in the CAFÉ programme were modified in FETA. These foods include crunchy oat cereal, milk non-specific, low-calorie/diet fizzy drinks, solid vegetable oil, Crisp ‘n Dry (solid fat), and oil and fat non-specific. Modifications to the nutrient data were made to ensure a more accurate nutrient profile and/or to better reflect the foods consumed, in the case of non-specific items, such as milk and oil/fat; these changes relate to nutrient/food data at the time of FFQ completion.
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