Are NHANES data structured the same way throughout the years?
No. The data structure and content of the NHANES surveys has changed over the years. This concept is important to understand when searching across different NHANES surveys. So when you use the tutorial, please consult the NHANES Data Structure and Contents module to understand how the continuous NHANES (1999 – present) and historic NHANES (I, II and III) are laid out differently.
