What is Continuous NHANES?
Since 1999, NHANES has been conducted on an ongoing basis with public-use data being
released in two-year cycles, and is referred to as continuous NHANES. The sample for
each two-year cycle is representative of the non-institutionalized U.S. population.
For more information about survey methodology and how to use the data, please review
the NHANES Survey Methods and Analytic Guidelines.