Methodologies for100 Top Hospitals

Backed by Proven, Peer-Reviewed Analytics


Each of our annual independent studies noted below are founded on trusted, validated methodologies. Criteria for qualifying hospitals and key performance measures are listed below. For more detailed information, please review the methodology highlights posted for each of the three studies.

Public data sources include:

  • Medicare Provider Analysis and Review (MEDPAR)
  • Medicare Hospital Cost Report Information System (HCRIS)
  • Centers for Medicare & Medicaid Services (CMS) Hospital Compare

 

100 Top Hospitals

Qualifying Hospitals
Short-term, acute-care, nonfederal U.S. hospitals treating a broad spectrum of patients.

Key Performance Measures

  • Risk-adjusted mortality index (in-hospital)
  • Risk-adjusted complications index
  • Core measures mean percent
  • Mean 30-day mortality rate
  • Mean 30-day readmission rate
  • Severity-adjusted average length of stay
  • Mean emergency department throughput
  • Inpatient expense per discharge (case mix and wage-adjusted)
  • Medicare spend per beneficiary index
  • Adjusted operating profit margin
  • HCAHPS (Hospital Consumer Assessment of Healthcare Providers and Systems) score indicating patient ratings of overall hospital performance

 

50 Top Cardiovascular Hospitals

Qualifying Hospitals
Short-term, acute-care, nonfederal U.S. hospitals with an open heart program. Specialty heart hospitals are included.

Key Performance Measures

  • Risk-adjusted mortality index (in-hospital)
  • Risk-adjusted complications index
  • Percentage of CABG (coronary artery bypass graft) patients with internal mammary artery use
  • 30-day mortality rate
  • 30-day readmissions rate
  • Severity-adjusted average length of stay
  • Wage- and severity-adjusted average cost per case

 

15 Top Health Systems

Qualifying Health Systems
A health system must have at least two short-term, acute-care, nonfederal U.S. hospitals that report a parent or related organization in their cost report. Specialty hospitals, such as Womens', Orthopedics, Cardiac, and Critical Access, are included in the study if they belong to a system.

Key Performance Measures

  • Risk-adjusted mortality index (in-hospital)
  • Risk-adjusted complications index
  • Core measures mean percent
  • Mean 30-day mortality rate
  • Mean 30-day readmission rate
  • Severity-adjusted average length of stay
  • Mean emergency department throughput
  • Medicare spend per beneficiary index
  • HCAHPS score (patient overall hospital rating)