National Health and Nutrition Examination Survey

National Health and Nutrition Examination Survey

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Survey Participants
Picture of group of diverse people

If you were selected, learn more about participating

Publications and Products
Image of charts

View health and nutrition reports & CDC Growth Charts

Survey Data and Documentation
Picture of computers

Access data, documentation & response rates

Data Analysis Tutorials
image of woman working on computer

Review step-by-step guidance on using  NHANES data

NHANES Webinar taking place October 4th. Click here to register.
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What's New
Data Release
Updated Data

The following data sets were previously revised in March 2005 to correct urine cadmium for a possible interference from molybdenum oxide. Recently, it was brought to our attention that after the adjustment, urinary cadmium values below the limit of detection (LOD) were not assigned the imputed value of the LOD divided by the square root of 2. Urinary cadmium values (URDUCD) were updated for 276 records in the 1999-2000 file (LAB06HM), and 324 records in the 2001-2002 file (L06HM_B) to the imputed value of 0.0424 ng/ml. The comment codes for urinary cadmium (URDUCDLC) were updated accordingly as well.

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