The Healthcare Cost and Utilization Project (HCUP) is a group of healthcare databases and related software tools that includes the most extensive collection of hospital care data in the United States, beginning in 1988. These databases enable research on the cost and quality of health services, medical practice patterns, access to healthcare programs, and treatment outcomes at the national, state, and local market levels. This database is made up of data from:
Nationwide
National Inpatient Sample (NIS);
Kids’ Inpatient Database (KID);
Nationwide Ambulatory Surgery Sample (NASS);
Nationwide Emergency Department Sample (NEDS);
Nationwide Readmissions Database (NRD).
State-specific
State Inpatient Databases (SID);
State Ambulatory Surgery and Services Databases (SASD);