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Nutritional Epidemiology$
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Walter C. Willett

Print publication date: 1998

Print ISBN-13: 9780195122978

Published to Oxford Scholarship Online: September 2009

DOI: 10.1093/acprof:oso/9780195122978.001.0001

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Food-Frequency Methods

Food-Frequency Methods

(p.74) 5 Food-Frequency Methods
Nutritional Epidemiology

Walter Willett

Oxford University Press

Food frequency questionnaires have become the primary method for measuring dietary intake in epidemiological studies. Such questionnaires are directed to the dietary exposure of conceptual interest in most applications, which is average intake over an extended period of time. This chapter discusses the design of food frequency questionnaires. Topics covered include the food list, frequency response action, options for portion size information, computation of nutrient intakes, and the use of empirical predictor scores.

Keywords:   food frequency questionnaires, questionnaire design, food intake, average intake, food list, frequency response action

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