How will these data be used?
Adding the FFQ and activity monitor sections to the NHANES allows our surveillance
efforts to keep abreast of the most recent advances in our methodological research.
Statistical techniques have been developed to incorporate information from an FFQ into
usual dietary intake estimates, and recent studies indicate overwhelmingly that physical
activity monitors are the most objective and efficient method of gathering data on
This initiative directly responds to NCI's programmatic goals in the areas of Emerging
Trends and Reducing Health Disparities. These additions to the NHANES will improve our
- estimate the number and percent of persons in the US population and designated
subgroups with selected cancer risk factors;
- monitor trends in risk behaviors and environmental exposures;
- study relationships between diet, physical activity, and health; and
- establish and maintain a national probability sample of baseline information on
physical activity and diet behaviors.