The Agency for Healthcare Research and Quality’s (AHRQ) Healthcare Cost and Utilization Project (HCUP) is a family of databases and tools intended to improve the quality, safety, efficiency, and effectiveness of the U.S. health care system. HCUP results from Federal-State-Industry partnership to build a comprehensive all payer data system. A summary of the databases available from HCUP can be found here. A summary is also provided in the table below.
Abbreviation |
File | Description | States Participating |
Available From: |
SID | State Inpatient Databases | Data on 95 percent of community hospital discharges | 44 | 1990 |
SASD | State Ambulatory Surgery Databases | Ambulatory surgical center data (hospital and free-standing) | 29 | 1997 |
SEDD | State Emergency Department Databases | ED visits that do not result in hospitalization | 29 | 1999 |
NIS | Nationwide Inpatient Sample | All-payer inpatient care database. A 20% stratified sample of U.S. community hospitals. | varies by year | 1988 |
NEDS | National Emergency Department Sample | All-payer inpatient ED database. A 20% stratified sample of U.S. community hospitals. | 2006 | |
KID | Kids’ Inpatient Database | All-payer inpatient database for children. Contains 3 million discharges form 3,500 community hospitals. | 1997 |
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