NHANES I Epidemiologic Follow-up Study (NHEFS) Linked Mortality File: 2005 Release

NCHS has completed a mortality update for NHEFS, which includes new record linkages of NHEFS participants to death records from the National Death Index (NDI). This new resource allows researchers the opportunity to conduct a vast array of outcome studies designed to investigate the association of a wide variety of health and risk factors collected over time with subsequent mortality. The updated mortality file is comprehensive in design so that it contains death information for deaths ascertained during the NHEFS data collection follow-up survey periods in 1982-84, 1986, 1987, and 1992, as well as new deaths identified through probabilistic record linkages with the NDI. The current NHEFS Linked Mortality file contains death information for all NHEFS participants identified as deceased as of December 31, 2000.

Due to confidentiality requirements, access to this file is available only through the NCHS Research Data Center (RDC). The NCHS RDC offers on-site and remote access capabilities. Interested researchers must submit an application to the NCHS RDC. For more information on the RDC application process, please visit http://www.cdc.gov/nchs/r&d/rdc.htm.

Please visit the NHEFS Linked Mortality File web page for more detailed information, including file documentation, data matching methodology, frequencies of selected variables and analytic guidelines
http://www.cdc.gov/nchs/r&d/nchs_datalinkage/nhefs_data_linkage_activities.htm.

For more information on NCHS data linkage activities, please visit http://www.cdc.gov/nchs/r&d/nchs_datalinkage/data_linkage_activities.htm.