National Health and Nutrition Examination Survey

What’s New

June 2021

Publications

2017-March 2020 Pre-Pandemic Data Release

Laboratory Data

Questionnaire Data

Limited Access Data

Updated Data

2017-March 2020 pre-pandemic Oral Health – Dentition (P_OHXDEN) dataset was updated to include additional data on root caries and root restoration (OHXRCAR, OHXRCARO, OHXRRES, OHXRRESO), secondary restoration (OHX##RTC, OHX##RSC), and dental sealants (OHX##SE). No change was made to data points previously released.

Data Releases – Other Cycles

Laboratory Data

Questionnaire Data

 

May 2021

Publications

2017-March 2020 Pre-Pandemic Data Release

Demographics Data

Examination Data

Laboratory Data

Questionnaire Data

Updated Data

2017-2018 Oral Health – Dentition (OHXDEN_J) dataset was updated to correct the following coding errors: 1) tooth count and coronal caries codes for teeth #3, #14, #19, and/or #30 for 5 records; 2) dental implant question, OHXIMP, for 3 records; and 3) coronal caries surface condition codes for teeth #4, #8, and/or #29 for 2 records.

 

April 2021

Publications

Data Release

Limited Access Data

 

March 2021

Publications

Updated Data

The 2017-2018 Cholesterol – Low-Density Lipoproteins & Triglycerides (TRIGLY_J) file was updated to correct the fasting criteria for those who were 12 years and older and examined in the morning section to have fasted at least 8 hours or more, but less than 24 hours. Participants included in the fasting subsample and provided sufficient blood specimen for triglycerides testing would have their triglycerides values included in the file. This update included triglycerides values reported for 2 additional records that were previously omitted due to the fasting criteria was mistakenly set as 8.5 hours to less than 24 hours. Both records have fasting sample weights (WTSAF2YR) > 0.

 

February 2021

Publications

Data Release

Updated Data

The 2015-2016 and 2017-2018 Chlamydia serology files have been updated to report two additional variables: SSCTEIOD (chlamydia Pgp3 EIA Optical Density) and SSCTMBFI (chlamydia Pgp3 MBA medium fluorescence intensity).

 

January 2021

Publications

 

December 2020

Publications

Data Release

Data Release – Limited Access Data

Updated Data

2017-2018 Dietary Supplement Database- Ingredient Information file (DSII) was updated to correct unit from grams to milligrams for four ingredients: Glucosamine (DSDIID=435), Chondroitin (DSDIID=4071), Glucosamine Hydrochloride (DSDIID=410), and Chondroitin Sulfate (DSDIID=571).

 

November 2020

Publications

Data Release

Data Release – Limited Access Data

Updated Data

2017-2018 Oral Health – Dentition (OHXDEN_J) dataset was updated to correct coding errors in OHX04CSC, OHX08CSC, OHX29CSC, and OHX29CTC for 3 records.

Documentation for the following pooled-sample datasets were updated to reflect the correct units of the reported analyte values. No changes were made to the actual data points of any analytes in these datasets.

Data Release – NNYFS

Data Release – Limited Access Data – NNYFS

 

October 2020

Publications

Data Release

 

September 2020

Publications

 

August 2020

Publications

Data Release

Updated Data

Documentation for 2015-2016 Plasma Fasting Glucose (GLU_I) file was updated to include additional information on the impact of instrument change on plasma glucose results in 2015-2016 and the potential implications on trend analysis. No changes were made to the actual data points of any analytes in this dataset.

 

July 2020

Data Release

Data Release – Limited Access Data

 

June 2020

Publications

Data Release

Data Release – Limited Access Data

Updated Data

The 2017-2018 Cytomegalovirus IgG & IgG Antibodies in serum dataset was updated to correct the categorization of cytomegalovirus IgG avidity, based on updated cutoff values.

 

May 2020

Data Release

Data Release – Limited Access Data

 

April 2020

Publications

Data Release

Updated Data

The 2001-2002 surplus serum folate dataset was updated to correct a calibration bias in the serum folic acid determination. Please refer to the analytic notes in the documentations accompanying the datasets for more details.

2015-2016 Oral Health – Dentition dataset were updated with additional data on secondary restoration codes that were collected on teeth had untreated dental caries and had an existing restoration. Updates were made to both the data file as well as the documentation.

 

March 2020

Publications

Data Release

Updated Data

 

February 2020

Publications

2017-2018 Data Release

Demographics Data

Examination Data

Laboratory Data

Questionnaire Data

Limited Access Data

Data Release – Other Cycles

Data Release – Other Cycles – Limited Access Data

Updated Data

2011-2012 Fatty Acids – Serum (FAS_G) file was updated to correct target age for the analytes and to include additional text on subsample weights in the documentation. Serum fatty acids were measured for all examined participants aged 3 to 11 years, and participants aged 12 years and older who were examined in the morning session in 2011-2012. No changes were made to the actual data points of any analytes in the dataset.

Withdrawn Data

The 2001-2002 surplus serum folate dataset has been temporarily withdrawn to correct a calibration bias.

 

January 2020

Data Release

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)”.

 

Archive – What’s New

Page last reviewed: June 30, 2021