Validation of a food-frequency questionnaire assessment of carotenoid and vitamin E intake using weighed food records and plasma biomarkers: The method of triads model

@article{McNaughton2005ValidationOA,
  title={Validation of a food-frequency questionnaire assessment of carotenoid and vitamin E intake using weighed food records and plasma biomarkers: The method of triads model},
  author={Sarah A McNaughton and Geoffrey Christopher Marks and Philip Gaffney and Gail M. Williams and Anne Green},
  journal={European Journal of Clinical Nutrition},
  year={2005},
  volume={59},
  pages={211-218}
}
Background: Reliability or validity studies are important for the evaluation of measurement error in dietary assessment methods. An approach to validation known as the method of triads uses triangulation techniques to calculate the validity coefficient of a food-frequency questionnaire (FFQ).Objective: To assess the validity of an FFQ estimates of carotenoid and vitamin E intake against serum biomarker measurements and weighed food records (WFRs), by applying the method of triads.Design: The… CONTINUE READING
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