Breast Cancer Risk Assessment Tool

Last modified date: 05/16/2011

 

The Breast Cancer Risk Assessment Tool is an interactive tool designed by scientists at the National Cancer Institute (NCI) and the National Surgical Adjuvant Breast and Bowel Project (NSABP) to estimate a woman's risk of developing invasive breast cancer. See About the Tool for more information.

The Breast Cancer Risk Assessment Tool may be updated periodically as new data or research becomes available.

Reminder: The Breast Cancer Risk Assessment Tool was designed for use by health professionals. If you are not a health professional, you are encouraged to print these results and discuss them with your health care provider.

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Limitations:

  • These risk calculations have been validated for women in the U.S. who are screened regularly for breast cancer.
  • Risk estimates do not allow one to say precisely which woman will develop breast cancer. In fact, some women who develop breast cancer may have lower estimated risks than some women who do not develop breast cancer.
  • The BCRAT was not designed to estimate risk for:

For women with any of the above medical history other methods to estimate breast cancer risk are better. See ‘About the Tool’ section for a list of references.

  • Recent immigrants from parts of rural Asia, such as rural China, probably have lower risks than projected by the tool.

Race/Ethnicity:

5 Year Risk of Developing Breast Cancer

  • This woman (age ):
  • Average woman (age ):

Explanation

Based on the information provided (see below), the woman's estimated risk for developing invasive breast cancer over the next 5 years is compared to a risk of for a woman of the same age and race/ethnicity from the general U.S. population. This calculation also means that the woman's risk of NOT getting breast cancer over the next 5 years is .

Lifetime Risk of Developing Breast Cancer

  • This woman (to age 90):
  • Average woman (to age 90):

Explanation

Based on the information provided (see below), the woman's estimated risk for developing invasive breast cancer over her lifetime (to age 90) is compared to a risk of for a woman of the same age and race/ethnicity from the general U.S. population.

These results are based upon the following answers:

Does the woman have a medical history of any breast cancer or of ductal carcinoma in situ (DCIS) or lobular carcinoma in situ (LCIS)?  
Does the woman have a genetic mutation in BRCA1 or BRCA2, or a diagnosis of a genetic syndrome that may be associated with elevated risk of breast cancer?  
What is the woman's age?
 
What was the woman's age at the time of her first menstrual period?  
What was the woman's age at the time of her first live birth of a child?  
How many of the woman's first-degree relatives - mother, sisters, and/or daughters - have had breast cancer?  
Has the woman ever had a breast biopsy?  
  a How many breast biopsies (positive or negative) has the woman had?  
  b Has the woman had at least one breast biopsy with atypical hyperplasia?  
What is the woman's race/ethnicity?  

New Risk Calculation