During the government shutdown, only websites supporting excepted functions will be updated. As a result, the information on this website may not be up-to-date and the agency may not be able to respond to inquiries. Updates regarding government operating status and resumption of normal operations can be found at https://www.opm.gov/.
These brochures and consent documents are part of the protocol for the National Health and Nutrition Examination Survey (NHANES), conducted by the National Center for Health Statistics.