Factors affecting reproducibility of dietary reports using food frequency questionnaires
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چکیده
منابع مشابه
Validity and Reproducibility of a Food Frequency Questionnaire for Dietary Factors Related to Colorectal Cancer
Dietary factors play a major role in the development of colorectal cancer. This study evaluated the reproducibility and validity of a 109-food item Food Frequency Questionnaire (FFQ) to measure the consumption of foods and nutrients related to the development of colorectal cancer in a population aged ≥50 years in Flanders, Belgium. A semi-quantitative FFQ was administered two times in a period ...
متن کاملEstimated dietary sodium intake in haemodialysis patients using food frequency questionnaires
BACKGROUND In clinical practice, dietary sodium assessment requires reliable and rapid screening tools. We wished to evaluate the usefulness of food frequency questionnaires (FFQ) in estimating dietary sodium intakes in haemodialysis patients. METHODS We used the Derby Salt Questionnaire (DSQ), and Scored Sodium Questionnaire (SSQ) to estimate sodium intake. Body composition was determined by...
متن کاملInvited commentary: comparison of food frequency questionnaires.
In this issue, Wirfalt et al. (1) provide a useful comparison of three dietary assessment methods among a population of 101 obese women. The essential findings were mean correlations of 0.60 between a modified Willett/Harvard questionnaire and the Block/ National Cancer Institute (NCI) questionnaire, 0.34 between the Block/NCI questionnaire and 3-day recalls, and 0.36 between the Willett/Harvar...
متن کاملFactors affecting response to postal questionnaires.
Epidemiological studies of chronic diseases often use data gathered individually from many persons, rather than remaining restricted to pre-recorded data. Generally this is done by personal interview, an expensive, time-consuming procedure. The increasing educational level and social consciousness of the population suggest that a carefully designed, highly objective postal questionnaire could s...
متن کاملFood frequency questionnaires: not irrelevant yet.
To the Editors: Kristal et al. (1) contend that the food frequency questionnaire (FFQ) be abandoned in epidemiologic studies of cancer for three reasons: (a) a growing lack of consistency within and across studies of diet and cancer risk; (b) poor correlations between the FFQ’s measure of protein and total energy with urinary nitrogen excretion and doubly labeled water, respectively; and (c) on...
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ژورنال
عنوان ژورنال: European Journal of Clinical Nutrition
سال: 2000
ISSN: 0954-3007,1476-5640
DOI: 10.1038/sj.ejcn.1601070