NCHS Data Linkage

NCHS Data Linked to NDI Mortality Files

NCHS has linked various surveys with death certificate records from the National Death Index (NDI). Linkage of the NCHS survey participants with the NDI mortality data provides the opportunity to conduct a vast array of outcome studies designed to investigate the association of a wide variety of health factors with mortality. The restricted-use Linked Mortality File (LMF) has been updated with mortality follow-up data through December 31, 2015.

NCHS Surveys Linked to NDI Mortality Data

  • National Health Interview Survey (NHIS): 1985 – 2014
  • National Health and Nutrition Examination Surveys (NHANES): 1999-2014
  • Third National Health and Nutrition Examination Survey (NHANES III)
  • Second National Health and Nutrition Examination Survey (NHANES II)
  • NHANES I Epidemiologic Follow-up Study (NHEFS)
  • National Nursing Home Surveys (NNHS): 1985, 1995, 1997, 2004
  • National Home and Hospice Care Survey (NHHCS) 2007
  • Supplement on Aging (SOA)
  • The Second Longitudinal Study of Aging (LSOA II)

Linked Mortality Data Bibliography


The details of the linked data, linkage methods, and analysis considerations, are available from the links on the navigation menu. For any additional questions, contact the Data Linkage Team:

Data Linkage Team
Division of Analysis and Epidemiology
National Center for Health Statistics
Centers for Disease Control and Prevention
3311 Toledo Road
Hyattsville, MD 20782

Page last reviewed: January 4, 2021, 03:15 PM