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NHANES II Linked Mortality Restricted-use File


Data File Description

The updated NHANES II Linked Mortality Restricted-use File provides mortality follow-up data from the date of NHANES II participation (1976-1980) through December 31, 2006. Mortality ascertainment is based primarily upon the results from a probabilistic match between NHANES II and NDI death certificate records. The NHANES II Linked Mortality Restricted-use data contains 9,252 records with information on NHANES II participant eligibility status, vital status, date of death, age at death, and underlying and contributing causes of death. Additional death certificate data are available by special request [PDF - 125 KB]. The NHANES II Linked Mortality Restricted-use data file does not contain perturbed data.


Data availability

Due to confidentiality requirements, the NHANES II Linked Mortality Restricted-use data are only accessible through the NCHS Research Data Center (RDC). Approved researchers will be able to analyze data from the NHANES II Restricted-use Linked Mortality File in the RDC. All interested researchers must submit a research proposal to the RDC requesting to access the "2009 NHANES II Restricted-use LMF". Special request variables [PDF - 125 KB], available separately, must be requested specifically, with additional justification, in the RDC proposal.


List of Variables at a Glance

  • NHANES II Sample Sequence Number
  • Eligibility status
  • Final mortality status
  • Date of death
  • Age at death
  • Age when last presumed alive
  • Underlying cause of death codes (ICD-9 and ICD-10)
  • Underlying cause of death recodes (ICD-9 and ICD-10)
  • Multiple cause of death entity axis codes
  • Multiple cause of death record axis codes
  • Date of birth
  • Date of NHANES II exam
  • Age at NHANES II exam


List of Data File Variables Available by Special Request




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