Breast Cancer Lifeme Risk Tool
Considered one of the most reliable breast cancer risk assessment tools available, the Tyrer-Cuzick Risk Assessment Calculator, or IBIS risk tool, asks questions related to various factors to determine your likelihood of developing breast cancer. The results of the Tyrer-Cuzick Risk Assessment Calculator will display your lifetime breast cancer risk score.
What factors are included in the Tyrer-Cuzick calculation?
Breast density- as assessed on mammography.
Reproductive history- age of 1st menstruation, age of menopause, number of births, HRT use, etc.
Personal health factors- age, weight, height, biopsy history, Ashkenazi heritage, etc.
Family history- cancers or genetic mutation (BRCA1 / BRCA2).
Interpreting your Risk Score:
Percentage Risk
<15% Average
15% - 19% Intermediate
20% or more High
A lifetime risk score equal to or >20% is considered high-risk for breast cancer. Women with dense breasts or a genetic / family history are at greater personal risk for breast cancer. If your Tyrer-Cuzick score indicates high risk, you should discuss this with your healthcare provider. In addition to discussing genetic counseling options, personalized care for high risk patients may include recommendations for early annual screening mammograms (age 25 or 30), annual screening MRIs, and/or annual screening ultrasounds.