American Journal of Epidemiology Vol. 154, No. 12 : 1100-1102
Copyright © 2001 by The Johns Hopkins University School of Hygiene and Public Health
NUTRITIONAL EPIDEMIOLOGY |
Invited Commentary: A Further Look at Dietary Questionnaire Validation
From the Departments of Nutrition and Epidemiology, Harvard School of Public Health, and from the Channing Laboratory, Departments of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (e-mail: dosulliv@hsph.harvard.edu).
Knowledge about the long-term consequences of diet is centrally dependent on the methods used to measure the intake of foods by individual participants in epidemiologic studies. To avoid recall and selection biases, which occur in many case-control investigations of diet, large-scale prospective studies are highly desirable. In this context, self-administered questionnaires are usually a practical necessity, and several different self-administered food frequency questionnaires have been developed. Because of the complex nature of individual diets and the substantial variability of food intake over time, measurement errors are inevitable. Thus, the evaluation and refinement of dietary questionnaires are appropriately an important component of nutritional epidemiology. The paper by Subar et al. (1
) in this issue is a valuable contribution, as it provides further insights into progress in the development of dietary assessment methods as well as limitations in the methods to assess validity.
In the analysis by Subar et al. (1
ACKNOWLEDGMENTS
NOTES
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Related articles in Am. J. Epidemiol.:
- Invited Commentary: Another Perspective on Food Frequency Questionnaires
- Gladys Block
Am. J. Epidemiol. 2001 154: 1103-1104.[Extract] [FREE Full Text] - Subar et al. Respond to "A Further Look at Dietary Questionnaire Validation" and "Another Perspective on Food Frequency Questionnaires"
- Amy F. Subar, Frances E. Thompson, and Victor Kipnis
Am. J. Epidemiol. 2001 154: 1105-1106.[Extract] [FREE Full Text]
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