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Topic: Use of Dietary Supplements
Questionnaire Title: Diet History Questionnaire
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Principal Investigator(s): A. Subar
Type of Questionnaire: Self-administered optical scan
Last Year of Data Collection: 2000
Short/Long Form: Short Form
Citation(s): Subar AF, Ziegler RG, Thompson FE, Johnson CC, Weissfeld JL, Reding D, Kavounis KH, Hayes RB. Is shorter always better? Relative importance of dietary questionnaire length and cognitive ease on response rates and data quality. Am J Epidemiol 2001;153:404-409.
Available Formats: PDF - Word