Risk Calculator

STS Short-Term Risk Calculator

As of November 15, 2018, The Society of Thoracic Surgeons released an updated short-term risk calculator to reflect the latest 2018 adult cardiac surgery risk models. You can read about these updated risk models in The Annals of Thoracic Surgery (Part 1—Background, Design Considerations, and Model Development and Part 2—Statistical Methods and Results.)

The STS Short-Term Risk Calculator allows you to calculate a patient’s risk of mortality and morbidities for the most commonly performed cardiac surgeries. The Risk Calculator incorporates STS risk models that are designed to serve as statistical tools to account for the impact of patient risk factors on operative mortality and morbidity.

Step-by-step instructions have been prepared to show you and members of your cardiothoracic surgery team how to access and use the new risk calculator.


Statistical Methodology for STS Risk Models and Performance Measures

View the STS Surgeon Composite Technical Appendix