The following questionnaire segment contains questions that have been used as part of DCEG or other epidemiologic studies. This segment has not necessarily been reviewed or analyzed by the Technical Evaluation Committee. Please view it as a starting point that can be adapted or improved upon as appropriate. Learn more about DCEG Questionnaire Development Resources.
Use of Dietary Supplements
Diet History Questionnaire
Self-administered optical scan
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.
Learn more about DCEG Questionnaire Development Resources