Data source
This is a retrospective cohort study using the Agency for Healthcare
Research and Quality’s Healthcare Cost and Utilization Project (HCUP)
Nationwide Readmission Database (NRD) for the years 2016-2018. The NRD
is a large, publicly available all-payer inpatient health care
readmission database in the United States. The NRD is drawn from HCUP
State Inpatient Databases (SID) containing verified patient linkage
numbers that can be used to track a person across hospitals within a
State, while adhering to strict privacy guidelines. National estimates
were produced using sampling weights provided by the sponsor. All values
presented are weighted estimates.