Welcome to the MBSAQIP Bariatric Surgical Risk/Benefit Calculator

With this tool you can enter preoperative information about your patient to provide estimates regarding your patient's risk of postoperative complications, remission of weight-related comorbidities, and weight loss for each of four primary bariatric surgical procedures.

Effective August 15, 2019, the American College of Surgeons is excited to launch the MBSAQIP Bariatric Surgical Risk/Benefit Calculator. While the risk/benefit calculator has been tested extensively, we are interested in any user observations of unreasonable estimates. Please report these to: nsqiptech@facs.org.

Note: the risk/benefit calculator operates best when used with the Chrome or Firefox browsers.

Disclaimer: The MBSAQIP Bariatric Surgical Risk/Benefit Calculator estimates the chance of an unfavorable outcome (such as a complication or death), the chance of remission of weight-related comorbidities, and the patient's BMI, weight change, and percent total weight change after surgery. These quantities are estimated based upon information the patient gives the healthcare provider about prior health history. The estimates are calculated using data from a large number of patients who had a primary bariatric surgical procedure similar to the one the patient may have.

Please note the risk percentages, remission percentages, BMI, weight change, and percent total weight change provided to you by the risk/benefit calculator are only estimates. These estimates only take certain information into account. There may be other factors that are not included in the estimate which may increase or decrease the risk of a complication, the chance of remission of a weight-related comorbidity, or the amount of weight the patient loses. These estimates are not a guarantee of results. A complication after surgery may happen even if the risk is low, a weight-related comorbidity may not go into remission even if the chances are high, and a patient may lose more or less weight than predicted. This information is not intended to replace the advice of a doctor or healthcare provider about the diagnosis, treatment, or potential outcomes. MBSAQIP is not responsible for medical decisions that may be made based on the risk/benefit calculator estimates, since these estimates are provided for informational purposes. Patients should always consult their doctor or other health care provider before deciding on a treatment plan.

Risk/Benefit Calculator Permitted Use: An external platform (e.g., an electronic health record) may open the web address of the risk/benefit calculator in a new browser window. However, we do not permit the calculator to appear as an integrated feature of any external platform, nor do we permit the functionality of the calculator to be automated in any way. The calculator must be presented in its original, unaltered form, maintaining all MBSAQIP branding and copyright information.