NHANES II Linked Mortality FileLists of variables at a glance Data file technical characteristics NCHS has conducted a mortality linkage of the Second National Health and Nutrition Examination Survey (NHANES II) with the NCHS National Death Index (NDI). The NHANES II mortality linkage includes information on 9,252 participants 30-75 years of age who completed a medical examination during the NHANES II survey period between 1976 and 1980. Linkage of the NHANES II survey participants with the NDI provides the opportunity to conduct studies designed to investigate the association of a variety of health factors with mortality. This current version of the NHANES II linked mortality files supersedes the data collected in the NHANES II Mortality Study conducted in 1992. The NHANES II linked mortality file contains information based upon the results from a probabilistic match between the NCHS National Death Index (NDI) records and obtained death certificates. The NHANES II linked mortality file provides mortality follow-up data from the date of NHANES II survey participation (1976-1980) through December 31, 2000. All NHANES II participants aged 30-75 years are included on the linked mortality file. Additional variables provided on the file include: assigned vital status, date of death, age of death, underlying and multiple causes of death as well as information from the NDI probabilistic match results. NHANES II linked mortality file variables at a glance
NHANES II Sample Sequence
Number List of data file variables available by special request PDF 171 KB Data file technical characteristics The NHANES II linked mortality file is available in SAS and ASCII file formats PDF 690 KB. The total number of records is 9,252. Due to confidentiality requirements, the NHANES II linked mortality data are only accessible through the NCHS Research Data Center (RDC). All interested researchers must submit a research proposal to the RDC to use the NHEFS linked mortality data. The RDC offers both on-site and remote user access. Approved researchers will be able to analyze data from the NHANES II standard linked mortality file PDF 690 KB which contains 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 171 KB. Requests for access to special request variables should be clearly documented in the researcher’s RDC proposal. File layout PDF 690 KB Detailed notes for selected variables PDF 14 KB Underlying and multiple causes of death PDF 257 KB Matching methodology PDF 119 KB Tabular data PDF 8 KB
Comparability of Cause of Death Between ICD-9 and ICD-10: Preliminary Estimates PDF 338 KB NHANES II Linked Mortality Files Citation List PDF 34 KB
Data Linkage Team
This page last reviewed
October 15, 2008
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