Self-Administered Semiquantitative Food Frequency Questionnaires
نویسندگان
چکیده
منابع مشابه
Comparison of the Block and the Willett self-administered semiquantitative food frequency questionnaires with an interviewer-administered dietary history.
The performances of two commonly used diet instruments, the Block and the Willett food frequency questionnaires, were compared with a longer, interviewer-administered diet history. Participants in a case-control study on diet and colon cancer were interviewed between 1990 and 1994 in northern California, Utah, and Minnesota by trained nutritionists using a validated diet history. Two separate s...
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We consider whether semiquantitative food frequency questionnaires can be used to survey a population so as to estimate the distribution of usual intake. We take as an assumption that if they were possible to obtain, the mean of many food records or recalls would be an accurate representation of an individual's usual diet. We then assume that nutrient intake as measured by a questionnaire follo...
متن کاملUse of semiquantitative food frequency questionnaires to estimate the distribution of usual intake.
The authors consider whether semiquantitative food frequency questionnaires can be used to survey a population to estimate the distribution of usual intake. They take as an assumption that, if they were possible to obtain, the mean of many food records or recalls would be an accurate representation of an individual's usual diet. They then assume that nutrient intake as measured by a questionnai...
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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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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...
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ژورنال
عنوان ژورنال: Epidemiology
سال: 2009
ISSN: 1044-3983
DOI: 10.1097/ede.0b013e3181931515