National Health and Nutrition Examination Survey

2017-2018 Demographics Variable List

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Variable NameVariable DescriptionData File NameData File DescriptionBegin YearEndYearComponentUse Constraints
AIALANGALanguage of the MEC ACASI Interview InstrumentDEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
DMDBORN4In what country {were you/was SP} born?DEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
DMDCITZN{Are you/Is SP} a citizen of the United States? [Information about citizenship is being collected by the U.S. Public Health Service to perform health related research. Providing this information is voluntary and is collected under the authority of the Public Health Service Act. There will be no effect on pending immigration or citizenship petitions.]DEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
DMDEDUC2What is the highest grade or level of school {you have/SP has} completed or the highest degree {you have/s/he has} received?DEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
DMDEDUC3What is the highest grade or level of school {you have/SP has} completed or the highest degree {you have/s/he has} received?DEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
DMDFMSIZTotal number of people in the FamilyDEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
DMDHHSIZTotal number of people in the HouseholdDEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
DMDHHSZANumber of children aged 5 years or younger in the householdDEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
DMDHHSZBNumber of children aged 6-17 years old in the householdDEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
DMDHHSZENumber of adults aged 60 years or older in the householdDEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
DMDHRAGZHH reference person's age in yearsDEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
DMDHREDZHH reference person's education levelDEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
DMDHRGNDHH reference person's genderDEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
DMDHRMAZHH reference person's marital statusDEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
DMDHSEDZHH reference person's spouse's education levelDEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
DMDMARTLMarital statusDEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
DMDYRSUSLength of time the participant has been in the US.DEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
DMQADFCDid {you/SP} ever serve in a foreign country during a time of armed conflict or on a humanitarian or peace-keeping mission? (This would include National Guard or reserve or active duty monitoring or conducting peace keeping operations in Bosnia and Kosovo, in the Sinai between Egypt and Israel, or in response to the 2004 tsunami or Haiti in 2010.)DEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
DMQMILIZ{Have you/Has SP} ever served on active duty in the U.S. Armed Forces, military Reserves, or National Guard? (Active duty does not include training for the Reserves or National Guard, but does include activation, for service in the U.S. or in a foreign country, in support of military or humanitarian operations.)DEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
FIAINTRPWas an interpreter used to conduct the Family interview?DEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
FIALANGLanguage of the Family Interview InstrumentDEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
FIAPROXYWas a Proxy respondent used in conducting the Family Interview?DEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
INDFMIN2Total family income (reported as a range value in dollars)DEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
INDFMPIRA ratio of family income to poverty guidelines.DEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
INDHHIN2Total household income (reported as a range value in dollars)DEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
MIAINTRPWas an interpreter used to conduct the MEC CAPI interview?DEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
MIALANGLanguage of the MEC CAPI Interview InstrumentDEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
MIAPROXYWas a Proxy respondent used in conducting the MEC CAPI Interview?DEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
RIAGENDRGender of the participant.DEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
RIDAGEMNAge in months of the participant at the time of screening. Reported for persons aged 24 months or younger at the time of exam (or screening if not examined).DEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
RIDAGEYRAge in years of the participant at the time of screening. Individuals 80 and over are topcoded at 80 years of age.DEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
RIDEXAGMAge in months of the participant at the time of examination. Reported for persons aged 19 years or younger at the time of examination.DEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
RIDEXMONSix month time period when the examination was performed - two categories: November 1 through April 30, May 1 through October 31.DEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
RIDEXPRGPregnancy status for females between 20 and 44 years of age at the time of MEC exam.DEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
RIDRETH1Recode of reported race and Hispanic origin informationDEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
RIDRETH3Recode of reported race and Hispanic origin information, with Non-Hispanic Asian CategoryDEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
RIDSTATRInterview and examination status of the participant.DEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
SDDSRVYRData release cycleDEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
SDMVPSUMasked variance unit pseudo-PSU variable for variance estimationDEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
SDMVSTRAMasked variance unit pseudo-stratum variable for variance estimationDEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
SEQNRespondent sequence number.DEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
SIAINTRPWas an interpreter used to conduct the Sample Person (SP) interview?DEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
SIALANGLanguage of the Sample Person Interview InstrumentDEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
SIAPROXYWas a Proxy respondent used in conducting the Sample Person (SP) interview?DEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
WTINT2YRFull sample 2 year interview weight.DEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
WTMEC2YRFull sample 2 year MEC exam weight.DEMO_JDemographic Variables and Sample Weights20172018DemographicsNone
Page last reviewed: 8/4/2020