Office of Health Care Access
Connecticut Hospital Quality and Utilization
This website was created using the MONAHRQ application developed by the Agency for Healthcare Research and Quality of the U.S Department of Health and Human Services.  Hospital utilization, quality and cost are provided using data from Connecticut hospitals patient billing and the Centers for Medicare & Medicaid Services (CMS). Data are in a ready to use format for consumers, researchers and decision makers.
To get started select a year:

2015      2014      2013      2012      2011

Understanding the Data
 1.      Quality Ratings
The quality ratings were created with the CMS Hospital Compare analysis tool and are based on several health topics and conditions relating to:
(a) Patterns of Care - information about the numbers of surgeries or procedures that a hospital performs; and
(b) Results of Care - patient survey results about their experience in the hospital. 
Click on the “Quality Ratings” tab to select a health condition or hospital(s) to view ratings.
Comparisons may be based on the national average for hospitals of the same type (profit or not for profit) and size (number of beds) or within a certain radius of user selected hospital(s).  Results may be displayed as:
1.    Symbol:
            Better than averageThe hospital scored better than average
            AverageThe hospital scored at average
            Below averageThe hospital scored below average
             Not enough data to reportThe hospital did not have enough data to report
2.    Symbol and risk-adjusted rate.  The risk –adjusted rate aims to 'level the playing field' by accounting for health risks that patients have before they enter the hospital.
3.    Bar charts
4.    Raw data 
2.     Service Use Rates/Health Care Utilization 
Service use rates tell how many patients use specific hospital services, how often and for how many days in a stay.  Data is aggregated at hospital or county level. Discharge counts of less than six are suppressed and indicated with “c” to protect patient confidentiality.
  • Avoidable hospitalizations are a measure of primary care access or outpatient services in a community using hospital inpatient billing data.
  • Hospital discharge i.e., the hospital stay, is the unit of analysis, not a person or patient. Thus, a person who is admitted to the hospital multiple times in one year will be counted each time as a separate "discharge" from the hospital.
  • Length of stay is the number of days a person spends in the hospital during a stay.
  • Charges are what a hospital asks to be paid for services and do not include professional (doctor) fees. Costs are the actual value of these services.  Costs are calculated utilizing cost-to-charge ratios based on hospital accounting reports from CMS.
Click on the “Service Use Rates” tab to select a health condition or surgical procedure to compare charges and cost among Connecticut hospitals and the rest of the nation.
Click on the “Resources” tab for definitions and methodology.
Other Information
For questions regarding the information provided on this page:
Email: or Call: 860-418-7001
For inpatient or emergency department data not provided on this page use the FOI request form.