National Health and Nutrition Examination Survey (NHANES 2001-2002)
STIPULATIONS FOR USE: Open Access to SodaPop. No data collected by NCHS is to be used for any purpose other than statistical analysis and reporting. NCHS further requires that analysts not use the data to learn the identity of any persons or establishments and the director of NCHS is to be notified if any identities are inadvertently discovered. The data is being released in sections. Some sections may not be released due to disclosure concerns. Sections will be released over time. Below is what is currrently available for NHANES 2001-2002. More will be added as they are released.
DESCRIPTION: NCHS has decided to produce and release public use data sets from the continuous NHANES in two year groupings (cycles). This Internet data release contains data and documentation for 11,039 persons who participated in the NHANES survey during 2001 and 2002. The data and documentation for the survey interview, laboratory and examination components are found in separate files. NCHS releases public use data sets from the continuous NHANES in two year groupings (cycles). This release does not contain all of the data collected on persons who participated in the survey during 2001-2002 (11,039 persons). As more data becomes available, there will be additional releases posted on this webpage. These updates will be fully documented on this site. Data processing, methodologic and disclosure concerns are examples of the reasons why various data components from NHANES 2001-2002 are not on this first public use data release. When (and if) these concerns are resolved, the data will be made publicly available. For a number of reasons, the release of data from the current NHANES will not be comparable to the approach used in previous NHANES studies. The data and documentation for the interview, laboratory, and examination components of the survey will be released in numerous files to facilitate ease of use and access via the Internet. This will require the user to merge files to create analytic data sets. In addition, changes in the survey design and implementation necessitate analytic guidelines that differ from previous NHANES. Many of the past general analytic principles still apply, but with adjustments for the new survey design and taking into account more recent statistical practices and procedures. This data release will allow for analyses of data collected in 2001-2002 using 2-year weights, as well as the ability to combine these data with those collected in 1999-2000 using 4-year weights. The analytic guidelines will be revised on various occasions as new issues are raised and addressed by NCHS staff. Users are encouraged to regularly check this site for updates on available data, documentation and guidelines for use of the data.
