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Release of the 2018 Nationwide Readmissions Database (NRD) (December 2020)

Release Date: December 2020

The Agency for Healthcare Research and Quality (AHRQ) has released the 2018 Nationwide Readmissions Database (NRD), an annual database designed to generate national estimates of readmissions. The NRD includes discharges for patients with and without repeat hospital visits in a year and those who have died in the hospital. This database addresses a large gap in healthcare data—the lack of nationally representative information on hospital readmissions for all patients, regardless of the expected payer for the hospital stay.

The 2018 NRD uses the State Inpatient Databases (SID) from 28 States with verified patient linkage numbers that can be used to track a person across hospitals within a State, while adhering to strict privacy guidelines. Unweighted, the NRD contains data from approximately 18 million discharges each year. Weighted, it estimates roughly 35 million discharges in the United States.

Additional information about the NRD can be found on the HCUP-US website. The 2018 NRD can be purchased through the HCUP Central Distributor.

Internet Citation: Release of the 2018 Nationwide Readmissions Database (NRD) (December 2020) Healthcare Cost and Utilization Project (HCUP). December 2020. Agency for Healthcare Research and Quality, Rockville, MD.
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Last modified 12/9/20