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

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

Nationwide Inpatient Sample (NIS) Kids’ Inpatient Database (KID) Nationwide Emergency Department Sample (NEDS)
 
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 Databases (SASD) State Emergency Department Databases (SEDD)

Internet Citation: HCUP Databases. Healthcare Cost and Utilization Project (HCUP). December 2013. Agency for Healthcare Research and Quality, Rockville, MD. www.hcup-us.ahrq.gov//databases.jsp.
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Last modified 12/26/13