We recommend that patients use this tool in consultation with their doctor.

A newer version of the tool, launched Spring 2024, uses an updated algorithm based on more recent data which shows people survive longer, and also factors in harms from treatment and offers more personalisation. Click here to try this new version.

As Predict's usage grows, we have moved to a new URL. Please adjust your bookmarks.

Predict is a tool that helps show how breast cancer treatments after surgery might improve survival rates. This print out shows what characteristics of the patient and the cancer were entered, and then how different treatments would be expected to improve survival rates up to 15 years after diagnosis. This is based on data from similar women in the past. Treatments usually have side effects as well as benefits, and it is important to consider these as well when making treatment choices. We recommend visiting the sites of charities such as Macmillan and Breast Cancer Now for details about side effects.