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Up-to-date Information
Up-to-Date Info: To find the latest CDC information on this topic go to: https://ftp.cdc.gov/pub/Health_Statistics/NCHS/datalinkage/linked_mortality/
Public-use Linked Mortality File: Updated March 2020
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March 2020
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Description:Updated March 2020
The National Center for Health Statistics (NCHS) has linked data collected from several NCHS population surveys with death certificate records from the National Death Index (NDI). Due to requirements to protect the confidentiality of the NCHS survey participants, restricted-use versions of the linked mortality files are made available only through the NCHS Research Data Center (RDC).
To complement the restricted-use files and increase data access, NCHS developed public-use versions of the linked mortality files for the 1986-2014 National Health Interview Survey (NHIS), 1999-2014 National Health and Nutrition Examination Survey (NHANES) and NHANES III. The public-use linked mortality files include a limited set of variables for adult participants only. The public-use versions of the NCHS linked mortality files were subjected to data perturbation techniques to reduce the participant disclosure risk. Synthetic data were substituted for follow-up time and underlying cause of death for select records. Information regarding vital status was not perturbed. The public-use linked mortality file provides mortality follow-up data from the date of survey participation through December 31, 2015.
public-use-2015-linked-mortality-file-description.pdf
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Pages in Document:5 numbered pages
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