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NHEFS Linked Mortality Restricted-use File

 

Data File Description

The updated NHEFS Linked Mortality Restricted-use File provides mortality follow-up data from the date of NHANES I survey participation (1971-1975) through December 31, 2006. Mortality ascertainment is based primarily upon deaths previously identified during one of the NHEFS follow-up periods (1982-84, 1986, 1987, and 1992) and the results from a probabilistic match between NHEFS and NDI death certificate records. The NHEFS Linked Mortality Restricted-use data contains 14,407 records with information on NHEFS 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 NHEFS Linked Mortality Restricted-use data file does not contain perturbed data.

 

Data Availability

Due to confidentiality requirements, the NHEFS 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 NHEFS Restricted-use Linked Mortality File in the RDC. All interested researchers must submit a research proposal to the RDC requesting to access the "2009 NHEFS 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 I 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 I exam
  • Age at NHANES I exam

 

List of Data File Variables Available by Special Request

 

Documentation

 

 
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