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NIS Related Reports
The National (Nationwide) Inpatient Sample (NIS) is the largest publicly available all-payer inpatient care database in the United States, containing data on more than seven million hospital stays each year.

Note: The NIS underwent a redesign for the 2012 data year. For more details, refer to the NIS Redesign Report. To do trends analysis using earlier data years, use NIS Trend Weights
NIS Related Reports

The following reports describe the design of the NIS, how the NIS compares to similar databases, and other information on how to use the NIS.

Internet Citation: NIS Related Reports. Healthcare Cost and Utilization Project (HCUP). August 2018. Agency for Healthcare Research and Quality, Rockville, MD.
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Last modified 8/13/18