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#497: Are Food Frequency Questionnaires Reliable?

Sigma Nutrition Radio

CHAPTER

Validation and Reproducibility of Food Frequency Questionnaires

This chapter discusses the importance of validation and reproducibility in analyzing food frequency questionnaires. The speaker explains different methods of validation, such as seven day weighed food diaries and multiple 24 hour recalls, and highlights the correlation coefficient as a statistical approach to determine the relationship between the questionnaire and the reference method. The chapter emphasizes the need to understand systematic errors and underestimations in food frequency questionnaires.

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