NHANES - National Health and Nutrition Examination Survey Homepage

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Survey Data and Documentation

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Publications and Products

View health and nutrition reports & CDC Growth Charts

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Review step-by-step guidance on using NHANES data

Survey Participants

If you were selected, learn more about participating

Publications and Products

View health and nutrition reports & CDC Growth Charts

Survey Data and Documentation

Access data, documentation & response rates

Data Analysis Tutorials

Review step-by-step guidance on using NHANES data

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What's New

Data Release

Caffeine & Caffeine Metabolites – Urine (CAFE_G 2011-2012)
Formaldehyde (FORMAL_I 2015-2016)

Updated Data

2015-2016 Complete Blood Count with 5-Part Differential – Whole Blood (CBC_I) file was updated to include an additional variable, LBXMC, to report mean cell hemoglobin concentration in g/dL, and to correct the description for variable LBXMCSI as “Mean Cell Hemoglobin (pg)”.

Complete Blood Count with 5-Part Differential – Whole Blood (CBC_I 2015-2016)

Page last reviewed: December 26, 2019

Content source: CDC/National Center for Health Statistics