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- Death records are added to the NDI file annually, about 11 months after the end of the calendar year. Historically, before a particular calendar year of deaths can be made available for NDI routine searches, NCHS must receive, process, and edit death records from all vital statistics offices.
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Latest Announcements. The National Death Index Final File for 2022 is now available for searching. The National Death Index Early Release File for 2023 is now available for searching. See completion percentages by state and territory. The Early Release File is now updated quarterly.
- About
NDI Final File: Death records are added to the NDI final...
- Completion Status
The National Death Index (NDI) is a central computerized...
- FAQs
CERTIFICATE: This is the least utilized category, as the...
- Resources for Users
The following bibliographies are available to connect you...
- NVSS
The 10 leading causes of death accounted for 72.3% of all...
- Data Access
Mortality (Deaths) Linked Birth/Infant Death; Fetal Death;...
- Research Data Center
The National Center for Health Statistics (NCHS) operates...
- About
- About NCHS
- National Death Index
- Who Uses Ndi?
- The Ndi Process
- How Long Does It Take For Deaths to Be Included in Ndi?
- How Are Ndi Data used?
The National Center for Health Statistics (NCHS) is the nation’s principal health statistics agency, providing data to identify and address health issues. NCHS compiles statistical information to help guide public health and health policy decisions. Collaborating with other public and private health partners, NCHS uses a variety of data collection ...
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 data received from state vital statistics offices. NCHS, in collaboration with state offices, established NDI as a resource for epidemiological follow-up s...
NDI clients represent all sectors of health and medical research, spanning federal and state agencies, private-sector entities, and academia. The service is not accessible to anyone for legal, administrative, or genealogical purposes.
NCHS receives more than 120 applications to use NDI each year. The average time to complete the application review process and receive approval is 2 to 3 months. 1. The researcher submits an application to NDI to ensure that: the death information is being used solely for statistical purposes in medical and health studies; data confidentiality is a...
Death records are added to the NDI file annually, about 11 months after the end of the calendar year. Historically, before a particular calendar year of deaths can be made available for NDI routine searches, NCHS must receive, process, and edit death records from all vital statistics offices. This delays the creation of the final NDI file for a par...
Since 1979, NDI has been used more than 1,000 times in health research publications. NDI has been used to determine the mortality status of participants for studies including: 1. Survival time among people with health conditions (e.g., cancer and heart disease). 2. Mortality risk among certain occupations (e.g., radiologists, pesticide applicators,...
National Death Index. 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 data received from state vital statistics offices.
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Death records are added to the NDI file annually. The NDI can be used by investigators to determine whether persons in their studies have died and, if so, to obtain copies of the matching death records from state vital statistics offices.
Jul 10, 2023 · There were 10 017 additional deaths from NDI results that were not present in the VDW death data. Conclusions NDI data can substantially improve the overall capture of deaths.
- 10.1136/bmjhci-2023-100737
- 2023
- BMJ Health Care Inform. 2023; 30(1): e100737.
Although reported COVID-19 deaths between Jan 1, 2020, and Dec 31, 2021, totalled 5·94 million worldwide, we estimate that 18·2 million (95% uncertainty interval 17·1–19·6) people died worldwide because of the COVID-19 pandemic (as measured by excess mortality) over that period.
Death records are added to the NDI file annually, approximately 12 months after the end of a particular calendar year. The NDI service is available to investigators solely for statistical purposes in medical and health research .
