Reliability and validity of a self-administered food frequency questionnaire in a chemoprevention trial of adenoma recurrence.

@article{Martnez1999ReliabilityAV,
  title={Reliability and validity of a self-administered food frequency questionnaire in a chemoprevention trial of adenoma recurrence.},
  author={Mar{\'i}a Elena Mart{\'i}nez and James Arthur Robert Marshall and Ellen J Graver and Robin C. Whitacre and Kathleen Woolf and Cheryl Ritenbaugh and David S. Alberts},
  journal={Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology},
  year={1999},
  volume={8 10},
  pages={941-6}
}
Various chemoprevention trials have assessed dietary intake by means of food frequency questionnaires. However, it is important to assess the degree to which such questionnaires can measure diet. We conducted reproducibility and validity analyses of our Arizona Food Frequency Questionnaire (AFFQ) in our recently completed, randomized, Phase III chemoprevention trial testing the effects of a wheat bran fiber supplement on colorectal adenoma recurrence. A total of 139 individuals provided a… CONTINUE READING
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