Slide 25. Nationwide Inpatient Sample (NIS): Stratified Sample of Hospitals From State Inpatient Databases (SID)

Healthcare Cost and Utilization Project (HCUP): Overview of HCUP Databases, Tools, and Resources

Slide Presentation from 2010 webinar describing the Healthcare Cost and Utilization Project (HCUP).

Text Description is below the image.

State Inpatient Databases

Image: Numerous small databases.

N = ~ 4K hospitals
~ 32M records

5 NIS Strata

  • U.S. Region.
  • Urban/Rural.
  • Teaching Status.
  • Ownership/Control.
  • Bed Size.

An arrow labeled "Stratified Sample of Hospitals" points from the above list to:

Nationwide Inpatient Sample

Image: One large database.

N = ~ 1K hospitals
~ 8M records

State is not included as a stratum.

Contents

Page last reviewed May 2010
Internet Citation: Slide 25. Nationwide Inpatient Sample (NIS): Stratified Sample of Hospitals From State Inpatient Databases (SID): Healthcare Cost and Utilization Project (HCUP): Overview of HCUP Databases, Tools, and Resources. May 2010. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/cpi/centers/ockt/kt/webinars/hcup/hcupsld25.html