Slide 28. Nationwide Emergency Department Sample (NEDS): Stratified Sample of Hospitals From State Emergency Department Databases (SEDD) and State Inpatient Databases (SID)
Healthcare Cost and Utilization Project (HCUP): Overview of HCUP Databases, Tools, and Resources
SEDD & SID
Image: Numerous small databases in two different colors, to distinguish SEDD and SID data.
N = ~ 2K hospital-based EDs [Emergency Departments]
~ 116M ED visits
5 NEDS Strata
- U.S. Region.
- Urban/Rural.
- Teaching Status.
- Ownership/Control.
- Trauma.
An arrow labeled "Stratified Sample of Hospitals" points from the above list to:
NEDS
Image: One large biocolored database.
N = ~ 1K hospital-based EDs
~ 26M ED visits
Similar to the Nationwide Inpatient Sample (NIS) and Kids' Inpatient Database (KID) strata: State is not included as a stratum.


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