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• Organization: U.S. Department of Health & Human Services
• Dataset Last Updated: September 22, 2026

NCHS has linked data from various surveys with death certificate records from the National Death Index (NDI). Linkage of the NCHS survey participant data with the NDI mortality data provides the...

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• Organization: U.S. Department of Health & Human Services
• Dataset Last Updated: September 23, 2026

To make linked data easier to access, NCHS has piloted a project that creates synthetic linked data files. Synthetic data are created using statistical techniques to maintain properties of the...

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