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National Institutes of Health Diet History Questionnaire (DHQ)
Please visit this website for more information about the instrument Diet History Questionnaire
Supplemental: Huntington's Disease (HD)
Short Description of Instrument
The Diet History Questionnaire (DHQ and DHQII) is a Food Frequency Questionnaire (FFQ) developed by staff at the Risk Factor Monitoring and Methods Branch (RFMMB). This DHQ consists of 124 food items and includes both portion size and dietary supplement questions. The recently revised DHQII (2017) has a 134-item food list and 8 dietary supplement questions. See Changes Between DHQ I & DHQ II for complete list of differences.
It takes about 1 hour to complete and was designed, based on cognitive research findings, to be easy to use.
The food list and nutrient database used with the DHQ are based on national dietary data (USDA's 1994-96 Continuing Survey of Food Intakes by Individuals [CSFII], available from the USDA Food Surveys Research Group).
Subar AF, Ziegler RG, Thompson FE, Johnson CC, Weissfeld JL, Reding D, Kavounis KH, Hayes RB; Prostate, Lung, Colorectal, and Ovarian Cancer Screening Trial Investigators. Is shorter always better? Relative importance of questionnaire length and cognitive ease on response rates and data quality for two dietary questionnaires. Am J Epidemiol. 2001;153(4):404-409. Diet History Questionnaire.


Document last updated February 2018