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.
|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|