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United States Nationwide Inpatient Sample 2013

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General Info
Original or alternative title 
HCUP Nationwide Inpatient Sample 2013
Geography 
Coverage type 
Country
Time period covered 
01/2013 - 12/2013
Series or system 
United States Nationwide Inpatient Sample
Data type
Administrative record:
  • Discharge
  • Inpatient
  • Nationally representative
Summary 

The National Inpatient Sample (NIS) is a database of hospital inpatient stays. It was developed by the Healthcare Cost and Utilization Project (HCUP), and up until 2011 was known as the Nationwide Inpatient Sample. The name and the design of the database changed in 2012. The NIS was formerly a sample of hospitals, with all discharges retained, but in 2012 the design changed to become a sample of discharges from all participating hospitals. Variables captured in the database include patient demographics, diagnosis and procedure codes, admission and discharge status, length of stay, expected payer, total charges, and hospital characteristics.

Citation
Suggested citation 
Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality (AHRQ). United States Nationwide Inpatient Sample 2013. Rockville, United States: Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality (AHRQ).