National Health and Nutrition Examination Survey

National Health and Nutrition Examination Survey

What's New
2017-March 2020 Pre-Pandemic Data Release

Laboratory Data

Questionnaire Data

Limited Access Data

Data Release – Other Cycles

Examination Data

Limited Access Data

Updated Data

The following Urinary Volatile Organic Compound (VOC) Metabolites datasets were updated to correct a systematic bias caused by a calibration error to the measurement of N-Acetyl-S-(3-hydroxypropyl-1-methyl)-L-cysteine (i.e., URXPMM). An algebraic correction factor of 0.565 were applied to the original URXPMM values and released in these files. No other data points in these files were changed.

 

Page last reviewed: November 30, 2021