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Databases
The HCUP family of administrative longitudinal databases contains encounter-level information on inpatient stays, emergency department visits, and ambulatory surgery in U.S. hospitals. These databases are created by AHRQ through a Federal-State-Industry partnership.
 
 
National (Nationwide) HCUP Databases

HCUP's National (Nationwide) databases can be used to identify, track, and analyze national trends in health care utilization, access, charges, quality, and outcomes.

yellow starNew! 2013 Nationwide Readmissions Database (NRD)

National (Nationwide) Inpatient Sample (NIS)
Kids’ Inpatient Database (KID) Nationwide Emergency Department Sample (NEDS) Nationwide Readmissions Database (NRD)
 
State-Specific HCUP Databases

HCUP's State-specific databases can be used to investigate State-specific and multi-State trends in health care utilization, access, charges, quality, and outcomes.

State Inpatient Databases (SID) State Ambulatory Surgery and Services Databases (SASD) State Emergency Department Databases (SEDD)

Internet Citation: HCUP Databases. Healthcare Cost and Utilization Project (HCUP). December 2015. Agency for Healthcare Research and Quality, Rockville, MD. www.hcup-us.ahrq.gov/databases.jsp.
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Last modified 12/11/15