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National Health and Nutrition Examination Survey

What's New

 

April 2014

Publications
Updated
  • Demographics (DEMO_G 2011-2012)
    The Demographics file was updated to expand the target age group of participants from 0-2 years to 0-19 years for the reported age in months at examination (RIDEXAGM) variable.

 

March 2014

Publications
New
Updated
  • Tuberculosis (TBX_G 2011-2012)
    Variable name TBQ010 has been changed to TBQ070 to be consistent with 1999-2000 release. The data values stay the same.
  • Total Testosterone (TST_G 2011-2012)
    The unit for variable LBXTST has been changed from nmol/L to ng/dL.

 

February 2014

New
Limited Access Documentation
Updated

 

January 2014

Publications
New
Updated
  • Demographic Variables and Sample Weights (DEMO_G 2011-2012)
    The Demographics file was updated to include the following household and family income related variables: INDHHIN2 (Annual household income),  INDFMIN2 (Annual family income), and INDFMPIR (Ratio of family income to poverty).

 

December 2013

Publications
New
Limited Access Documentation
Updated

 

November 2013

Publications
New
Limited Access Documentation
Updated

 

October 2013

Publications
New
Limited Access Documentation
Updated
  • Polyfluorinated Compounds (PFC_E 2007-2008)
  • Polyfluorinated Compounds (PFC_F 2009-2010)
    One of the perfluorinated standards (perfluorononanoic acid, PFNA) used for analyzing the NHANES 2007-2008(PFC_E) and 2009-2010 (PFC_F) serum samples is not 100% pure, but 82% pure. Therefore, the values for perfluorononanoic acid (LBXPFNA )  in datasets PFC_E and PFC_D were adjusted.

 

September 2013

Publications
New
2011-2012 Data Release
Other Cycles
Limited Access Documentation
Updated

 

August 2013

Publications
New
Updated

 

July 2013

New
Limited Access

 

June 2013

 
New
Updated

Laboratory mercury files for 2005-2006, 2007-2008, and 2009-2010 have been reorganized.  Total mercury variables have been relocated and some files renamed accordingly.  There are no changes to the values of any data items, and no data has been added or removed from the website.  Specifically:

Total mercury variables LBXTHG, LBDTHGSI, and LBDTHGLC have been REMOVED from the formerly-named “Blood Total Mercury and Blood Inorganic Mercury” files, and these files have been renamed  “Blood Inorganic Mercury” to reflect  the removal of total mercury (THG) variables. The file abbreviation has been changed from “THgIHg_[X]” to “IHg_[X]”. 

Total mercury variables LBXTHG, LBDTHGSI, and LBDTHGLC have been ADDED to the formerly-named “Blood Cadmium and Lead” files, and these files have been renamed “Blood Cadmium, Lead, and Total Mercury” to reflect the addition of total mercury variables.  The file abbreviation “PbCd_[X]” remains the same.

 

May 2013

 
Publications
Updated

 

April 2013

 

New
Limited Access Documenmtation
Updated

 

March 2013

 

Publications
New
Limited Access Documenmtation
Updated

 

February 2013

 

Publications
New
Updated

 

January 2013

 

Announcements
New
Updated
  • Hepatitis A (HEPA_F 2009-2010)

    The dataset of HEPA_F has been updated by adding SPs from 2 year old.

December 2012

 

Announcements
New

 

November 2012

 

Announcements
Publications
New

 

October 2012

 

Announcements
Publications
New

 

September 2012

 
Announcements
Publications
New
Updated

 

August 2012

 

Announcements
Publications
New
Updated

 

July 2012

 

Publications
New
Updated
 

June 2012

 

New

 

May 2012

 

Publications
New
Updated
  • WITHDRAWN: Hemagglutination inhibition antibody titers to influenza A/ H1N1 viruses (SSH1N1_E 2007-2008)

    This dataset has been withdrawn until sample weights and additional analytic guidance can be developed.

 

April 2012

 

Publications
New
Tutorials
  • NHANES Physical Activity and Cardiovascular Fitness Data Tutorial
    NHANES has released the first course of the NHANES Physical Activity and Cardiovascular Fitness Data Tutorial. The NHANES physical activity and cardiovascular fitness data consist of study participant information obtained through the physical activity questionnaire (PAQ), the cardiovascular fitness examination (CVX), and the physical activity monitor examination (PAX). These data provide a snapshot of physical activity and cardiovascular fitness for the U.S. population. This tutorial simulates a real life experience of how to conduct an analytical project from beginning to end, with a step-by-step logical flow through typical analytic procedures. Relevant information on physical activity and cardiovascular fitness data, nuances, tips, explanations for SAS or SUDAAN programs, downloadable sample program code, and analytical guidance are organized and integrated into different modules and tasks to facilitate this learning process.
  • NHANES-CMS Linked Data Tutorial
    NHANES has released the first two courses of the NHANES-CMS Linked Data Tutorial. NHANES-CMS linked data is created by linking NHANES survey participants with claims records collected from Center for Medicare and Medicaid Services (CMS). Linkage of the NHANES survey participants with the CMS data provides the opportunity to study changes in health status, health care utilization and expenditures in the elderly, disabled, and other U.S. populations. This tutorial walks you through the steps for conducting an analytic project using the continuous NHANES-CMS linked data, with examples of common analytic applications and procedures.

 

March 2012

 

Publications
New
Limited Access Documentation
Updated

 

February 2012

 

Publications
 
New
Limited Access Documentation
Updated

 

January 2012

 

Publications
New
Limited Access Documentation
Updated
  • Complete Blood Count with 5-Part Differential in Whole Blood (CBC_F 2009-2010)
    Platelet count and RBC data have been added to CBC_F.
  • PHPYPA Urinary Phthalates (PHPYPA 1999-2000)
  • Urinary Phthalates, Phytoestrogens and PAHs (PHPYPA_B 2001-2002)
  • Urinary Phthalates (L24PH_C 2003-2004)
  • Urinary Phthalates (PHTHTE_D 2005-2006)
  • Urinary Phthalates (PHTHTE_E 2007-2008)
    NCHS recently learned that analytical standards used since 1999 and used for several metabolites were of insufficient purity. After further investigation, it was determined that a correction factor needs to be applied to each value for the 5 metabolites. These metabolites and the specific correction factor for each are as follows:  Mono-ethyl phthalate (URXMEP), 0.66; Mono-benzyl phthalate (URXMZP), 0.72; Mono-n-octyl phthalate (URXMOP), 1.68; Mono-isononyl phthalate (URXMNP), 1.54; and Mono-cyclohexyl phthalate (URXMCP), 2.01. The correction factor should be applied to each analyte for NHANES survey periods 1999-2000, 2001-2002, 2003-2004, 2005-2006, and 2007-2008 results.  
  • Urinary Priority Pesticides (Non-Persistent Pesticide Metabolites) (LAB26PP 1999-2000)
  • Urinary Priority Pesticides (Non-Persistent Pesticide Metabolites), (L26PP_B 2001-2002)
    The pentachlorophenol (URXPCP) and 2,4-dichlorophenol (URXDCB) results for the 2 survey periods (1999-2000 and 2001-2002) were affected by an unacceptable calibration bias and these results are withdrawn. A similar calibration bias resulted in withdrawal of several chemical results for the 2 survey periods and described in documentation notes for the Urinary Priority Pesticides and Organophosphate Pesticides files (Lab26PP, L26PP_B).

 

Archive - What's New

 

 

 

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