Breast Cancer Risk Prediction

Calculating Results

This calculator is intended for use by health care providers. The results of this tool should never be used alone to determine a patient's medical treatment. This tool is a statistical model and is not a substitute for an individual treatment plan developed by a doctor with personal knowledge of a specific patient. Other important factors that must be considered include the patient's own medical history and the experience, knowledge and training of the doctor. Doctors should personally discuss these results with patients when presenting prognoses or treatment recommendations.

To begin, please enter the patient’s age at her benign biopsy


Please choose from the following categories.

live births

None indicates no involuted terminal duct lobular units (TDLUs) are involuted; partial indicates 1-74% TDLUs are involuted; complete indicates >75% TDLUs are involuted.

Patient Details

45 year old patient and family history of breast cancer including the following parameters:

Risk of breast cancer (%)

Years from nowIndividual RiskPopulation Average
5 years
10 years
15 years
20 years
25 years
30 years
Print Results

Details regarding the development and validation of this tool are provided in the manuscript titled "Model for Individualized Prediction of Breast Cancer Risk After a Benign Breast Biopsy" (V. Shane Pankratz, Amy C. Degnim, Ryan D. Frank, Marlene H. Frost, Daniel W. Visscher, Robert A. Vierkant, Tina J. Hieken, Karthik Ghosh, Yaman Tarabishy, Celine M. Vachon, Derek C. Radisky, and Lynn C. Hartmann, Journal of Clinical Oncology 33, 2015).