Reproducibility of a short semi-quantitative food group questionnaire and its performance in estimating nutrient intake compared with a 7-day diet diary in the Million Women Study.

OBJECTIVES: To assess the short- and long-term reproducibility of a short food group questionnaire, and to compare its performance for estimating nutrient intakes in comparison with a 7-day diet diary. DESIGN: Participants for the reproducibility study completed the food group questionnaire at two...

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Váldodahkkit: Roddam, A, Spencer, E, Banks, E, Beral, V, Reeves, G, Appleby, P, Barnes, I, Whiteman, D, Key, T
Materiálatiipa: Journal article
Giella:English
Almmustuhtton: 2005