National Cancer Institute Home at the National Institutes of Health |
Please wait while this form is being loaded....
The Applied Research Program Web site is no longer maintained. ARP's former staff have moved to the new Healthcare Delivery Research Program, the Behavioral Research Program, or the Epidemiology & Genomics Research Program, and the content from this Web site is being moved to one of those sites as appropriate. Please update your links and bookmarks!

Diet History Questionnaire: Response Rates/Length of Questionnaire

Alternate Version Available

You are viewing the Web site for the original version of the DHQ. The latest version is the DHQ II. You may want to see the DHQ II version of this information.

Based on pilot study research from about 400 individuals in one study and about 1000 in another, the response rates for the DHQ varied from 70-85%. In both these studies, the DHQ response rates were not statistically different than those from shorter FFQs. Based on the first study listed below, the questionnaire takes about one hour to complete.

Subar AF, Ziegler RG, Thompson FE, Johnson CC, Weissfeld JL, Reding D, Kavounis KH, Hayes RB for the Prostate, Lung, Colorectal, and Ovarian Cancer Screen 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):404-9.

Subar AF, Thompson FE, Kipnis V, Midthune D, Hurwitz P, McNutt S, McIntosh A, Rosenfeld S. Comparative Validation of the Block, Willett, and National Cancer Institute Food Frequency Questionnaires: The Eating at America's Table Study. Am J Epidemiol 2001;154:1089-99.

Last Modified: 18 Oct 2013