Hospital Performance Ratings Summary Report
When compared to the state average rates, 58 hospitals (18.0 percent) were rated “Better” and 86 hospitals (26.6 percent) were rated “Worse” on at least one risk-adjusted outcome measure in 2021.
Why Publish Hospital Ratings for CABG, Elective PCI, and IMI?
This visualization was created to help assess hospital performance and quality of care for multiple outcomes. Ratings for CABG, elective PCI, and IMIs are published in this visualization to provide users with a tool to explore and compare state-licensed hospitals across selected performance measures from 2016 to 2021. The Hospital Comparison feature allows users to compare two California hospitals across all performance measures for a single year or multiple years from 2016 to 2021.
Key Findings
Hospitals were rated “Better”, “Worse”, or “As Expected” by comparing their risk-adjusted outcome measures with the overall state rates for each measure. Risk-adjustment is a statistical methodology that takes into account a patient’s age, assigned sex at birth, and underlying health conditions for fair comparisons among hospitals.
- When compared to the state average rates, 58 hospitals (18.0 percent) were rated “Better” and 86 hospitals (26.6 percent) were rated “Worse” on at least one risk-adjusted outcome measure in 2021.
- Of the 58 better-rated hospitals, 36 were rated “Better” on a single measure, 15 on two measures, three on three measures, two on four measures, and two on five outcome measures in 2021.
- Of the 86 worse-rated hospitals, 59 were rated “Worse” on a single measure, 17 on two measures, six on three measures, three on four measures, and one on five measures in 2021.
- There were 179 (55.4 percent) hospitals in 2021 rated “As Expected”, or not significantly different from the state average, for all 18 outcome measures.
- In general, hospitals showed fairly consistent performance across all 18 outcome measures. In 2021, seven hospitals (2.2 percent), however, had “mixed” results – they were rated “Better” on at least one measure and “Worse” on at least one measure.
CABG Outcomes
The CABG outcomes report provides information on four risk-adjusted performance measures for state-licensed hospitals that perform CABG surgery, including Isolated CABG Operative Mortality. Detailed information on other CABG performance measures is available on the HCAI – Hospital Performance Ratings for Coronary Artery Bypass Graft (CABG) Surgery webpage.
Elective PCI Outcomes
The elective PCI outcomes report provides information on three performance measures for state-licensed hospitals that are certified to perform elective PCIs without on-site cardiac surgery. There are two risk-adjusted outcome measures: Elective PCI Mortality, and Elective PCI Stroke, plus information on PCIs that resulted in Emergency CABG. More information on elective PCI can be found on the HCAI – Elective Percutaneous Coronary Intervention (PCI) Program Report webpage.
IMI Outcomes
The IMIs are a subset of Inpatient Quality Indicators that are developed by the federal Agency for Healthcare Research and Quality. They include six medical conditions plus three sub-measures and five surgical procedures. More information on IMIs is available on the
HCAI – Inpatient Mortality Indicators (IMI) webpage.
Medical Conditions:
- Acute Stroke (Hemorrhagic, Ischemic, Subarachnoid)
- Acute Myocardial Infarction (AMI)
- Gastrointestinal (GI) Hemorrhage
- Heart Failure
- Hip Fracture
- Pneumonia
Surgical Procedures:
- Abdominal Aortic Aneurysm (AAA) Repair Endo Unruptured*
- AAA Repair Open Unruptured*
- Carotid Endarterectomy
- Pancreatic Resection
- Percutaneous Coronary Intervention (PCI)
Note: *AAA Repair Endo Unruptured and AAA Repair Open Unruptured are not available as IMI performance measures for 2016, 2017, and 2018. Blank spaces indicate no available data.
How HCAI Created This Product
The Hospital Performance Ratings Summary, 2016-2021 data visualization was built from the three reports merged on the hospital’s ID.
Additional Information
Topic: Healthcare Quality
Source Link: Healthcare Quality
Citation: HCAI – California Hospital Performance Ratings for Coronary Artery Bypass Graft (CABG) Surgery Data – California Hospital Performance Ratings, 2016-2021; Elective Percutaneous Coronary Intervention (PCI) Program Reports, 2021; California Hospital Inpatient Mortality Rates and Quality Ratings, 2017-2021
Temporal Coverage: 2016-2021
Spatial/Geographic Coverage: Statewide and County
Frequency: Annually