National Death Index
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National Death Index

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  • Description:
    The National Death Index (NDI), a self-supporting service of NCHS, is a component of the National Vital Statistics System. NDI is a centralized database of death record information compiled from state vital statistics offices. NCHS, in collaboration with state offices, established NDI as a resource for epidemiological follow-up studies and other types of health and medical research that require determination of the mortality status of study subjects. These mortality data are provided by the states, under contracts with NCHS that specify how these data may be used, for what purposes, and at what costs. Currently, NDI contains about 95 million records from 1979 through 2016 from 50 states, the District of Columbia, New York City, Puerto Rico, and U.S. Virgin Islands. As of 2017, Guam, American Samoa, and the Northern Marianas are also included. 294676 For more information about NCHS, visit factsheet_ndi.pdf
  • Content Notes:
    Who uses NDI? -- The NDI process -- How long does it take for deaths to be included in NDI? --How are NDI data used?
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