
Hospital Compare was created through the combined efforts of Medicare and the Hospital Quality Alliance (HQA) to promote the reporting of hospital quality of care. The HQA consists of organizations representing consumers, hospitals, providers, employers, accrediting organizations, and federal agencies. The data is measured using various tools and parameters such as patient experience surveys, clinical quality and safety indicators, volume of cancer surgeries, and readmission rates. The data is then used to assign ratings to hospitals, such as superior, above average, average, below average, and poor. These ratings help consumers compare hospital performance and make informed healthcare decisions.
| Characteristics | Values |
|---|---|
| Purpose | To promote reporting on hospital quality of care, making it easier for consumers to make informed health care decisions and to support efforts to improve quality in U.S. hospitals |
| Data Sources | Publicly available sources, including patient discharge data, birth certificate data, and national performance measures |
| Data Measures | Process of care, outcome, patient experience, imaging efficiency, care transitions, ED throughput efficiency, care coordination, patient safety, readmissions, mortality, complications, hospital equity, severe sepsis hospitalizations, coronary artery bypass surgery outcome data, etc. |
| Data Presentation | Percentages, rates, performance categories, letter grades, charts, tables, numeric data, symbols, descriptive information |
| Data Comparison | Hospitals are compared to each other and to national, state, or standard benchmarks |
| Data Limitations | May not capture all dimensions of care quality, may not distinguish between hospitals in the middle majority, may not include out-of-pocket cost data |
| Data Updates | Data is updated regularly, with new measures and topics added over time |
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What You'll Learn

Patient experience
The Hospital Compare website provides information on the quality of care at Medicare-certified hospitals in the United States. The patient experience is a crucial aspect of healthcare quality, and Hospital Compare includes data on various dimensions of patient satisfaction and care.
The HCAHPS survey asks patients about their recent hospital stay, covering topics such as how well doctors and nurses communicated with them, how responsive hospital staff were to their needs, and how well their pain was controlled. The survey also asks patients about the cleanliness and quietness of their hospital room, the clarity of discharge instructions, and their overall rating of the hospital.
Hospital Compare presents patient experience data in various ways. It provides star ratings for individual hospitals, which summarize patient satisfaction across multiple aspects of care. These ratings range from one to five stars, with higher ratings indicating better patient experiences. The website also presents more detailed information, including percentages of patients who gave positive ratings for specific aspects of care, such as communication, responsiveness, and pain management. Users can compare hospitals on these individual measures, allowing for a more nuanced understanding of patient experiences.
The patient experience data on Hospital Compare is updated periodically, usually on a quarterly basis, to ensure that it remains current and reflective of hospitals' performance. This allows patients and their families to make informed decisions about their healthcare choices and encourages hospitals to continuously improve the quality of care they provide.
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Process of care
For example, one process of care measure on Hospital Compare is the percentage of heart attack patients who receive aspirin at discharge. Aspirin is a recommended treatment for heart attack patients
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Outcome measures
In addition to patient experience, outcome measures can also include various aspects of care such as imaging efficiency patterns, care transitions, emergency department throughput efficiency, care coordination, and patient safety. These measures provide valuable insights into the effectiveness of treatments and interventions, helping hospitals identify areas for improvement and enhance the quality of care they provide.
Furthermore, outcome measures can be used to assess specific conditions or procedures. For instance, CMS's Hospital Care Compare reports condition-specific, risk-standardized rates of readmissions, mortality, and complications for each hospital. This information is crucial for patients as it enables them to make informed decisions about their healthcare choices. However, it is worth noting that the effectiveness of such tools in enabling patients to make meaningful quality-based choices has been questioned due to the low number of hospitals receiving above-average or below-average designations.
While outcome measures play a crucial role in evaluating hospital performance, it is important to consider other dimensions of care quality as well. For instance, patient satisfaction surveys can provide valuable insights into the patient's perspective on the care they received. By combining outcome measures with other performance measures and patient feedback, hospitals can gain a comprehensive understanding of their strengths and weaknesses, ultimately driving improvements in the quality of care they deliver.
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Hospital ratings
One example of hospital ratings is the Hospital Quality Initiative, which includes the Hospital Inpatient Quality Reporting (IQR) Program and the Hospital Outpatient Reporting (OQR) Program. These programs collect data on process of care measures, which show whether a health care provider gives recommended care based on guidelines, standards of care, or practice parameters. The data is then used to determine if a hospital will receive a reduction in its Medicare fee-for-service payment rate.
Another example is Hospital Compare, which was created through the collaboration of Medicare and the Hospital Quality Alliance (HQA). Hospital Compare provides quality measure information on various topics, including heart attack, heart failure, pneumonia, and surgical care. The website also includes data from the Hospital Consumer Assessment of Healthcare Providers and Systems (HCAHPS) survey, which measures patient experience of care. In addition, Hospital Compare has introduced an Overall Hospital Quality Star Rating and data from the Veterans Health Administration (VHA) hospitals and Department of Defense hospitals.
There are also other tools and websites that provide hospital ratings, such as the Leapfrog Group's Hospital Safety Score website, which assigns scores to acute care hospitals in the United States based on national performance measures. Wisconsin CheckPoint is another example that reports on the quality and safety of acute care and specialty hospitals in Wisconsin. These ratings are based on clinical quality and safety indicators, as well as patient experience of care measures.
It is important to note that there are limitations to hospital rating systems, as different data systems can lead to different conclusions. "Risk adjustment" is one method used to ensure fair comparisons between hospitals, taking into account factors such as the number of diabetic patients a hospital treats. Additionally, considering multiple performance measures and including dimensions such as patient satisfaction can provide more granular information for consumers.
In conclusion, hospital ratings play a crucial role in helping consumers make informed decisions about their healthcare choices. These ratings are based on various measures, surveys, and data sources, which are constantly evolving to improve accuracy and fairness. However, it is important to recognize the limitations of these systems and continue striving for better data collection and analysis to benefit patients and improve healthcare quality.
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Hospital comparisons
Hospital Compare was created through the combined efforts of Medicare and the Hospital Quality Alliance (HQA). The HQA, a public-private collaboration, was formed in December 2002 to promote reporting on hospital quality of care. The alliance consists of organisations that represent consumers, hospitals, providers, employers, accrediting organisations, and federal agencies. The HQA's efforts were intended to help consumers make informed healthcare decisions and support initiatives to improve quality in US hospitals.
Hospital Compare initially featured a "starter set" of ten process-of-care measures on topics such as heart attack, heart failure, pneumonia, and surgical care. Over the years, Hospital Compare has expanded to include data from the Hospital Consumer Assessment of Healthcare Providers and Systems (HCAHPS) survey, also known as the CAHPS Hospital Survey. In 2016, an Overall Hospital Quality Star Rating was introduced, and data from Veterans Health Administration Hospitals and Department of Defense hospitals were added.
Hospital Compare provides quality measure information on process-of-care measures, which indicate whether a healthcare provider delivers recommended care based on guidelines, standards of care, or practice parameters. Outcome measures reflect the results of care rather than whether a specific treatment or intervention was performed. Patient experience is assessed through a national, standardised survey, HCAHPS, about their experiences during inpatient hospital stays.
Various tools and platforms exist to facilitate hospital comparisons, including CMS's Hospital Care Compare, which identifies performance outliers but does not distinguish between hospitals in the middle majority. Other tools include the Leapfrog Group's Hospital Safety Score, which assigns scores to acute care hospitals in the US, indicating their safety for patients. This score is based on 30 national performance measures and is presented as a letter grade.
Comparing data from different hospital data systems can help validate information and detect problems. Four major national data systems collect data on short-stay hospital use by persons aged 65 and over. These systems provide insights into national patterns and trends in hospital care, informing healthcare research and policy formulation.
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Frequently asked questions
Hospital Compare was created through the efforts of Medicare and the Hospital Quality Alliance (HQA) to promote the reporting of hospital quality of care. It was intended to help consumers make informed health care decisions and improve quality in U.S. hospitals.
Hospital Compare measures process of care, outcome measures, and patient experience. Process of care measures refer to whether a health care provider gives recommended care based on guidelines, standards of care, or practice parameters. Outcome measures reflect the results of care. Patient experience is measured through a national, standardized survey known as HCAHPS (Hospital Consumer Assessment of Healthcare Providers and Systems).
Data is collected through various sources, including public reporting by hospitals, surveys, and research. For example, Cal Hospital Compare gathers data from publicly available sources, while the Leapfrog Group uses data from the Leapfrog Hospital Survey, the Agency for Healthcare Research and Quality (AHRQ), and other secondary sources.
The data is measured using various scales, ratings, and categories. Hospitals may be rated as superior, above average, average, below average, or poor. Risk adjustment is applied to level the playing field among hospitals, considering factors like the number of cases handled and patient characteristics. The data is presented using charts, tables, numeric data, symbols, and descriptive information.





































