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United States Nationwide Inpatient Sample 2008

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General Info
Original or alternative title 
HCUP Nationwide Inpatient Sample 2008
Provider 
Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality (AHRQ)
Microdata access: Request
Geography 
United States of America (USA)
Coverage type 
Country
Time period covered 
01/2008 - 12/2008
Series or system 
United States Nationwide Inpatient Sample
Data type
Administrative data:
  • Discharge
  • Inpatient
  • Nationally representative
Summary 

The Nationwide Inpatient Sample (NIS) is a database of hospital inpatient stays. It was developed by the Healthcare Cost and Utilization Project (HCUP), and is meant to approximate a 20% sample of United States community hospitals. Variables include patient demographics, diagnosis and procedure codes, admission and discharge status, length of stay, expected payer, total charges, and hospital characteristics.

The 2008 NIS release includes data from 42 states. When the NIS began in 1988, eight states were included. As of 2011, data from 46 states were included in the NIS. The 2008 release includes information on all inpatient stays from over 1,000 hospitals, totaling approximately 8.2 million records. 

Keywords 
Causes of death, Causes of morbidity, DRGs, Diagnosis, Emergency care, Health care access, Health care expenditures, Health care prices, Health care services, Health insurance, Hospitals, ICD-9, Income, Length of stay, Medical tests, Mortality, Private health facilities, Public health facilities, Public social assistance, Race, Surgical procedures, Therapies, Lower respiratory infections
GHDx Entry last modified on: Aug 5, 2021