Skip directly to local search Skip directly to A to Z list Skip directly to navigation Skip directly to site content Skip directly to page options
CDC Home

National Health and Nutrition Examination Survey

What's New

 

October 2014

 
Publications

September 2014

 
Publications
New
Updated
  • Hepatitis A (HEPA_E 2007-2008)
    Hepatitis A (HEPA_E) has been updated to add data for SPs 20 year and older.

 

The original pooled-sample weight created for the following laboratory files released in July 2013 did not accurately take into account the new sample design for this NHANES survey cycle and it was not correctly stratified to the U.S. population total. The new released files contain the corrected sample weight (WTSMSMPA).The corrected sample weight was created so that analyses using race and Hispanic origin would be comparable to the three groups used in NHANES 2005-2006 (non-Hispanic white, non-Hispanic black and Mexican-American). Therefore, analyses of the data for ”Total Hispanics” is not appropriate. No changes or corrections were made to the lab analyte data in this new release. Any analyses of the data using the old public use data file should be repeated using the corrected sample weight on this new file.

  • Brominated Flame Retardants (BFRPOL_D 2005-2006)
  • Non-dioxin-like Polychlorinated Biphenyls and mono-ortho-substituted Polychlorinated Biphenyls (PCBPOL_D 2005-2006)
  • Organochlorine pesticides and metabolites (PSTPOL_D 2005-2006)
  • Brominated Flame Retardants (BFRPOL_E 2007-2008)
  • Non-dioxin-like Polychlorinated Biphenyls and mono-ortho-substituted Polychlorinated Biphenyls (PCBPOL_E 2007-2008)
  • Organochlorine pesticides and metabolites (PSTPOL_E 2007-2008)

 

August 2014

New
Updated
  • Occupation Questionnaire (OCQ_F 2009-2010)
    Industry and occupation group code variables have been added for the participant’s current and longest held jobs.
    The following laboratory files have been withdrawn from public release because an error was discovered in the creation of sampling weights. New files with corrected weights will be released as soon as feasible.
  • Environmental Phenols (EPH_G 2011-2012)
  • Environmental Pesticides (PP_G 2011-2012)
  • Urinary Perchlorate, Urinary Nitrate, Urinary Thiocyanate (PERNT_G 2011-2012)
  • Urinary Iodine (UIO_G 2011-2012)
  • Urinary Mercury (UHG_G 2011-2012)
  • Urinary Phthalates (PHTHTE_G 2011-2012)
  • Polyaromatic Hydrocarbons (PAH_G 2011-2012)
  • Total Arsenic and Speciated Arsenics (UAS_G 2011-2012)
  • Urinary Heavy Metal (UHM_G 2011-2012)
  • Urinary Volatile Organic Compounds and Metabolites (UVOC_G 2011-2012)
  • Polyfluorinated Compounds (PFC_G 2011-2012)
  • Thyroid Profile (THYROD_G 2011-2012)
  • Serum Copper, Selenium, and Zinc (CUSEZN_G 2011-2012)

 

July 2014

Publications
New
Limited Access Documentation
Updated

 

June 2014

New
Limited Access Documentation

May 2014

Publications
New
Updated
    These datasets have been withdrawn due to misspecification of the pooled-sample weights, and will be corrected and reposted.
  • Organochlorine pesticides and metabolites (Pooled) (2007-2008 PSTPOL_E)
  • Brominated Flame Retardants (Pooled Samples) (2007-2008 BFRPOL_E)
  • Non-dioxin-like Polychlorinated Biphenyls and mono-ortho-substituted PCBs 2007-2008 (PCBPOL_E)
  • Organochlorine pesticides and metabolites (Pooled) (2005-2006 PSTPOL_D)
  • Brominated Flame Retardants (Pooled Samples) (2005-2006 BFRPOL_D)
  • Non-dioxin-like Polychlorinated Biphenyls and mono-ortho-substituted Polychlorinated Biphenyls (Pooled Samples) (2005-2006 PCBPOL_D)
  • Polybrominated-p-dioxins (PBDDs) and dibenzofurans (PBDFs) (Pooled Samples) (2005-2006 BDOXPL_D)
  • Polychlorinated dibenzo-p-dioxins (PCDDs), dibenzofurans (PCDFs), and coplanar polychlorinated biphenyls (cPCBs) (2005-2006 DOXPOL_D)

 

April 2014

Announcements
Publications
New
Limited Access
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.
  • Oral Health - Periodontal (OHXPER_F 2009-2010)
    The Periodontal file was updated with the correct values measured at examination for variables OHX30PCL, OHX30CJL, OHX14LAA, and  OHX29LAA.
  • Unmetabolized Folic Acid (Surplus Sera) (SSFOL_B 2001-2002)
    SSFOL_B has been removed from public release to RDC release, because it is a method study, not prevalence study.

 

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

 

 

 

National Health and Nutrition Examination Survey logo

Contact Us:
  • National Center for Health Statistics
    3311 Toledo Rd
    Room 5419
    Hyattsville, MD 20782
  • 1 (800) 232-4636
  • Contact CDC–INFO
USA.gov: The U.S. Government's Official Web PortalDepartment of Health and Human Services
Centers for Disease Control and Prevention   1600 Clifton Road Atlanta, GA 30329-4027, USA
800-CDC-INFO (800-232-4636) TTY: (888) 232-6348 - Contact CDC–INFO
A-Z Index
  1. A
  2. B
  3. C
  4. D
  5. E
  6. F
  7. G
  8. H
  9. I
  10. J
  11. K
  12. L
  13. M
  14. N
  15. O
  16. P
  17. Q
  18. R
  19. S
  20. T
  21. U
  22. V
  23. W
  24. X
  25. Y
  26. Z
  27. #