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2011 Public-Use Linked Mortality Files

Public-use Linked Mortality Files (LMF) are available for 1986-2009 NHIS, NHANES III, 1999-2010 NHANES, and LSOA II and include a limited set of mortality variables for adult participants only. The public-use versions of the NCHS Linked Mortality Files were subjected to data perturbation techniques to reduce the risk of participant re-identification. For selected decedent records, synthetic data were substituted for the actual date and underlying cause of death. Information regarding vital status was not perturbed.


Data Files and Data Dictionaries


Comparability with Restricted-Use Files

Refer to the Data Linkage Team’s online report – “Comparative Analysis of the NHIS Public-Use and Restricted-Use Linked Mortality Files: 2015 Public-Use Data Release” [PDF – 1.06 MB] – for an examination of mortality between the public- and restricted-use files.

For more information about accessing the restricted-use mortality files, please consult the Restricted-Use Linked Mortality Data page.