What’s New
February 2023
Data Release
- Ethylene Oxide (ETHOX_J 2017-2018)
- Ethylene Oxide (P_ETHOX 2017-March 2020)
- Flame Retardants – Urine (Surplus) (SSFR_J 2017-2018)
Data Release – Limited Access Data
- Fluoride- 24-Hour Urine – First Collection (U1FL_H_R 2014)
- Fluoride- 24-Hour Urine – Second Collection (U2FL_H_R 2014)
- Iodine – Salt (IODS_K_R 2019-2020)
- Salt Use (SUQ_K_R 2019-2020)
January 2023
Data Release
- Chlorinated Tyrosine – Serum (Surplus) (SSCLTY_I 2015-2016)
Data Release – Limited Access Data
- Human Papillomavirus (HPV) – 6, 11, 16, 18, 31, 33, 45, 52, & 58 Antibody – Serum: M9ELISA (HPVN_D_R 2005-2006)
December 2022
Publications
- Evaluation of Alternative Body Mass Index (BMI) Metrics to Monitor Weight Status in Children and Adolescents With Extremely High BMI Using CDC BMI-for-age Growth Charts [PDF – 3 MB]
- SARS-CoV-2 Serology and Self-Reported Infection Among Adults – National Health and Nutrition Examination Survey, United States, August 2021-May
Updated Data
1999-2000 Perfluoroaokyl Chemicals – Serum (Surplus) (SSPFC_A) dataset was updated to adjust the rounding for the imputed value used for cases with results less than the Limit of Detection for 2-(N-Methyl-perfluorooctane sulfonamido) acetic acid (i.e., LBXMPAH) to be consistent with data released in other cycles. The updated imputed value was rounded to the second decimal place and changed from 0.20 ng/mL to 0.17 ng/mL. This update affect 36 records.
- Perfluoroaokyl Chemicals – Serum (Surplus) (SSPFC_A 1999-2000)
2003-2004 Polyfluoroalkyl Chemicals (L24PFC_C) dataset was updated to adjust the rounding for the Limit of Detection (LOD) and the imputed value used for cases with results less than LOD for 2-(N-Methyl-perfluorooctane sulfonamido) acetic acid (i.e., LBXMPAH) to be consistent with data released in other cycles. The updated LOD was rounded to the second decimal place and changed from 0.50 ng/mL to 0.52 ng/mL, and the imputed value used for cases below the LOD was updated from 0.30 ng/mL to 0.37 ng/mL. This update affected 1532 cases with LBXMPAH values below the original LOD, and identified 57 additional cases below the updated LOD (0.50< LBXMPAH<0.52) thus had their data replaced with imputed value as well. In addition, coding error was identified and corrected for LBDMPAHL for one record.
- Polyfluoroalkyl Chemicals (L24PFC_C 2003-2004)
November 2022
Publications
Data Release
- Fluoride – Urine (UFLDE_I 2015-2016)
- Glyphosate (GLYP) – Urine (Surplus) (SSGLYP_I 2015-2016)
October 2022
Data Release
- Oral Microbiome – Alpha-Diversity Metrics and Beta-Diversity Matrices (2009-2012)
- Physical Activity Monitor – Ambient Light Raw Data (PAXLUX_H 2013-2014)
- Physical Activity Monitor – Ambient Light Raw Data (PAXLUX_G 2011-2012)
- Physical Activity Monitor – Ambient Light Raw Data (Y_PAXLUX, NNYFS 2012)
Data Release – Limited Access Data
- Oral Microbiome – Relative Abundance and Read Count Tables (2009-2012)
- Physical Activity Monitor – Ambient Light Raw Data (PAXLUX_G_R 2012)
- NHANES/NNYFS Combined Sample 2012 – Physical Activity Monitor – Ambient Light Raw Data (C_PAXLUX 2012)
- NHANES III and NHANES 1999-2018 records have been linked to Medicaid program enrollment, health care utilization and expenditure data from the Centers for Medicare & Medicaid Services (CMS). For more information, please visit: NCHS Data Linkage – Medicaid Enrollment and Claims Data (cdc.gov).
Updated Data
The summary ambient light (lux) measures (i.e., PAXLXSH) previously included in the following Physical Activity Monitor (PAM) Minute Summary Files were erroneously described as the ‘sum’ of lux measures at the minute level whereas the values reported are the ‘mean’ lux measures for the minute. The files were updated with the variable PAXLXSH renamed as PAXLXMM and description corrected. No change was made to the data points reported. In addition, the descriptions for the codes associated with the quality check flags were also updated to clarify the data issues denoted by these flags.
- Physical Activity Monitor – Minute (PAXMIN_H 2013-2014)
- Physical Activity Monitor – Minute (PAXMIN_G 2011-2012)
- Physical Activity Monitor – Minute (PAXM_G_R 2012)
- Physical Activity Monitor – Minute (Y_PAXMIN, NNYFS 2012)
- NHANES/NNYFS Combined Sample 2012 – Physical Activity Monitor – Minute (C_PAXMIN 2012)
The documentations for the following Physical Activity Monitor – Raw Data 80hz Files were updated to clarify the data issues described in the codes associated with the quality check flags. No change was made to the data points reported.
- Physical Activity Monitor – Raw Data 80hz (PAX80_H 2013-2014)
- Physical Activity Monitor – Raw Data 80hz (PAX80_G 2011-2012)
- Physical Activity Monitor – Raw Data 80hz (PAX80_G_R 2011-2012)
- Physical Activity Monitor – Raw data 80hz (Y_PAX80, NNYFS 2012)
- NHANES/NNYFS Combined Sample 2012 – Physical Activity Monitor – Raw 80 Hz Data (C_PAX80 2012)
September 2022
Publications
Data Release
- Consumer Behavior Phone Follow-up Module – Adult (P_CBQPFA 2017-March 2020)
- Consumer Behavior Phone Follow-up Module – Child (P_CBQPFC 2017-March 2020)
- High-sensitivity cardiac troponins (Surplus) (SSTROP_A 1999-2004)
- Perchlorate, Nitrate & Thiocyanate – Urine (PERNT_J 2017-2018)
- Volatile Organic Compound (VOC) Metabolites – Urine (P_UVOC 2017-March 2020)
- Volatile Organic Compound (VOC) Metabolites – Urine (UVOC_J 2017-2018)
- Volatile Organic Compound (VOC) Metabolites II – Urine (P_UVOC2 2017-March 2020)
- Volatile Organic Compound (VOC) Metabolites II – Urine (Surplus) (SSUVOC_J 2017-2018)
August 2022
Publications
Data Release
- Cancer antigen CA125, CA15.3 and HE4 IgG antibodies – Serum (Surplus) (SSCGA_B 2001-2002)
- Hepatitis A (P_HEPA 2017-March 2020)
- Hepatitis B Surface Antibody (P_HEPB_S 2017-March 2020)
- Hepatitis B: Core antibody, Surface antigen, and Hepatitis D antibody (P_HEPBD 2017-March 2020)
- Hepatitis E: IgG & IgM Antibodies (P_HEPE 2017-March 2020)
July 2022
Data Release
- Autoantibodies – Anti-DFS70 Autoantibody Analyses (Surplus) (SSDFS_G 2011-2012)
- Autoantibodies – Anti-DFS70 Autoantibody Analyses (Surplus) (SSDFS_A 1999-2004)
- Autoantibodies – Anti-DFS70 Autoantibody Analyses (Surplus) (SSNH3DFS 1988-1994)
- Cotinine and Hydroxycotinine – Serum (P_COT 2017-March 2020)
- Dietary Interview – Individual Foods, First Day (P_DR1IFF 2017-March 2020)
- Dietary Interview – Individual Foods, Second Day (P_DR2IFF 2017-March 2020)
- Dietary Interview – Total Nutrient Intakes, First Day (P_DR1TOT 2017-March 2020)
- Dietary Interview – Total Nutrient Intakes, Second Day (P_DR2TOT 2017-March 2020)
- Dietary Interview Technical Support File – Food Codes (P_DRXFCD 2017-March 2020)
- Dietary Supplement Use 24-Hour – Individual Dietary Supplements, First Day (P_DS1IDS 2017-March 2020)
- Dietary Supplement Use 24-Hour – Individual Dietary Supplements, Second Day (P_DS2IDS 2017-March 2020)
- Dietary Supplement Use 24-Hour – Total Dietary Supplements, First Day (P_DS1TOT 2017-March 2020)
- Dietary Supplement Use 24-Hour – Total Dietary Supplements, Second Day (P_DS2TOT 2017-March 2020)
- Flame Retardants – Urine (Surplus) (SSFR_I 2015-2016)
- N-terminal Pro-BNP (Surplus) (SSBNP_A 1999-2004)
- Transferrin Receptor (P_TFR 2017-March 2020)
Updated Data
The NHANES Dietary Supplement Databases were updated to reflect the additional supplements reported during the 24-hour recall of dietary supplement use from the 2017-March 2020 pre-pandemic sample and corrections of previous entry errors.
- Dietary Supplement Database – Blend Information (DSBI 1999-2020)
- Dietary Supplement Database – Ingredient Information (DSII 1999-2020)
- Dietary Supplement Database – Product Information (DSPI 1999-2020)
The following 30-Day Dietary Supplement Use datasets from the 2017-March 2020 pre-pandemic sample were updated to reflect the corrections of the Dietary Supplement Databases. This update affected 124 records in the Individual Dietary Supplements (P_DSQIDS) file, and 65 records in Total Dietary Supplements (P_DSQTOT) file.
- Dietary Supplement Use 30-Day – Individual Dietary Supplements (P_DSQIDS 2017-March 2020)
- Dietary Supplement Use 30-Day – Total Dietary Supplements (P_DSQTOT 2017-March 2020)
June 2022
Data Release
- Glyphosate (GLYP) – Urine (SSGLYP_H 2013-2014)
- Hepatitis C: RNA (HCV-RNA), Confirmed Antibody (INNO-LIA), & Genotype (P_HEPC 2017-March 2020)
- Pertussis and tetanus – Serum (Surplus) (SSPT_I 2015-2016)
- Serum Neurofilament Light Chain – Serum (SSSNFL_H 2013-2014)
May 2022
Publications
Data Release
- Vitamin A, Vitamin E & Carotenoids (VITAEC_J 2017-2018)
Data Release – Limited Access Data
- Folate Forms – Total & Individual – Washed RBCs (FFMR_K_R 2019-2020)
Updated Data
The following 2017-2018 Hepatitis datasets were updated to include data inadvertently omitted from previously release. A total of 38 records were affected for dataset HEPA_J, 39 records affected for HEPB_S_J, 1 record for HEPBD_J, 5 records for HEPC_J, and 41 records for HEPE_J.
- Hepatitis A (HEPA_J 2017-2018)
- Hepatitis B: Core antibody, Surface antigen, and Hepatitis D antibody (HEPBD_J 2017-2018)
- Hepatitis B: Surface Antibody (HEPB_S_J 2017-2018)
- Hepatitis C: RNA (HCV-RNA), Confirmed Antibody (INNO-LIA), & Genotype (HEPC_J 2017-2018)
- Hepatitis E: IgG & IgM Antibodies (HEPE_J 2017-2018)
April 2022
Data Release
- Vitamin D (VID_J 2017-2018)
Data Release – Limited Access Data
- Cognitive Functioning (CFQ_K_R 2019-2020)
Updated Data
The following Ethylene Oxide datasets were updated to correct a systematic bias caused by a calibration error to the measurement of ethylene oxide (i.e., LBXEOA). An algebraic correction based on a regression equation was applied to the original LBXEOA values and released in these files. Please refer to the analytic notes in the documentations accompanying the datasets for more details. No other data points in these files were changed.
- Ethylene Oxide (ETHOX_I 2015-2016)
- Ethylene Oxide (ETHOX_H 2013-2014)
- Ethylene Oxide – Special Sample (ETHOXS_H 2013-2014)
The 2017-2018 Organophospate Insecticides – Dialkyl Phosphate Metabolites – Urine (OPD_J) file was originally released for the one-third subsample of examined participants aged 6 years and older. It has been updated to include data from the additional target group of participants aged 3-5 years. No changes to the data points previously released.
- Organophosphate Insecticides – Dialkyl Phosphate Metabolites – Urine (OPD_J 2017-2018)
The 2011-2012 Physical Activity Monitor – Raw data 80hz (PAX80_G) files were updated to include hourly activity data from 2 participants (SEQN = 63347 and 65108) whose data were inadvertently omitted from previously release.
- Physical Activity Monitor – Raw Data 80hz (PAX80_G 2011-2012)
March 2022
Data Release
- Audiometry (P_AUX 2017-March 2020)
- Audiometry – Acoustic Reflex (P_AUXAR 2017-March 2020)
- Audiometry – Tympanometry (P_AUXTYM 2017-March 2020)
- Audiometry – Wideband Reflectance (P_AUXWBR 2017-March 2020)
- Cotinine, Hydroxycotinine, & Other Nicotine Metabolites and Analogs – Urine (UCOT_J 2017-2018)
- Flame Retardants – Urine (FR_J 2017-2018)
- Organophosphate Insecticides – Dialkyl Phosphate Metabolites – Urine (OPD_J 2017-2018)
Data Release – Limited Access Data
- Standing Balance (BAQ_K_R 2019-2020)
Withdrawn Data
These datasets have been temporarily withdrawn from the NHANES website to correct a calibrator bias.
- Ethylene Oxide (ETHOX_I 2015-2016)
- Ethylene Oxide (ETHOX_H 2013-2014)
- Ethylene Oxide – Special Sample (ETHOXS_H 2013-2014)
February 2022
2017-March 2020 Pre-Pandemic Sample Data Release
Questionnaire Data
- Food Security (P_FSQ 2017-March 2020)
Data Release – Limited Access Data
- Food Security – Pregnant Women (P_FSQ_R 2017-March 2020)
Updated Data
The following urinary total arsenic datasets were updated to include the comment code variable, URDUASLC, indicating whether the result was below the lower limit of detection.
- Arsenic – Total – Urine (UTAS_I 2015-2016)
- Arsenic – Total – Urine (UTAS_H 2013-2014)
- Arsenic – Total – Urine – Special Sample (UTASS_I 2015-2016)
- Arsenic – Total – Urine – Special Sample (UTASS_H 2013-2014)
The Food Security questionnaire datasets from the 2015-2016 cycle (FSQ_I & FSQ_I_R) were updated to correct errors in the values for FSQ162 in 151 records, FSQ760 in 232 records, and/or FSD760N in 119 records.
- Food Security (FSQ_I 2015-2016)
- Food Security – Pregnant Women (FSQ_I_R 2015-2016)
The Food Security questionnaire datasets from the 2017-2018 cycle (FSQ_J & FSQ_J_R) were updated to correct errors in the values for FSQ162 in 136 records, FSQ760 in 166 records, and/or FSD760N in 51 records. In addition, data from 2 records (SEQN = 96475 & 95929) inadvertently omitted from previously release were added to the file.
- Food Security (FSQ_J 2017-2018)
- Food Security – Pregnant Women (FSQ_J_R 2017-2018)
January 2022
2017-March 2020 Pre-Pandemic Sample Data Release
Examination Data
- Liver Ultrasound Transient Elastography (P_LUX 2017-March 2020)
Dietary Data
- Dietary Supplement Use 30-Day – Individual Dietary Supplements (P_DSQIDS 2017-March 2020)
- Dietary Supplement Use 30-Day – Total Dietary Supplements (P_DSQTOT 2017-March 2020)
Questionnaire Data
- Alcohol Use (P_ALQ 2017-March 2020)
Limited Access Data
- Alcohol Use – Youth (P_ALQY_R 2017-March 2020)
2019-March 2020 Convenience Sample Data Release
Limited Access Data
- Tuberculosis – Quantiferon TB Gold Plus (TB_K_R 2019-2020)
- Volatile Organic Compounds – A-Pinene – Blood (VCWB_K_R 2019-2020)
Data Release – Other Cycles
- Dietary Supplement Database – Blend Information (DSBI 1999-2020)
- Dietary Supplement Database – Ingredient Information (DSII 1999-2020)
- Dietary Supplement Database – Product Information (DSPI 1999-2020)
- Physical Activity Monitor – Raw data 80hz (PAX80_H 2013-2014)
- Physical Activity Monitor – Raw data 80hz (PAX80_G 2011-2012)
Data Release – Limited Access Data
- Physical Activity Monitor – Raw 80 Hz Data (PAX80_G_R 2011-2012)
Data Release – NNYFS
Examination Data
- Physical Activity Monitor – Raw data 80hz (Y_PAX80 2012)
Limited Access Data