Decision Support for Chemoprevention

Inclusion Criteria:

1. Women, age 40-79 years (ages which overlap for the BCSC and ASCVD risk calculators)
2. High-risk for breast cancer based upon any of the following criteria:

   * Histologically-confirmed atypical hyperplasia or lobular carcinoma in situ
   * At least a 3% breast cancer risk at 5 years or 5% risk at 10 years or 20% lifetime risk according to one of the following breast cancer risk models: Breast Cancer Surveillance Consortium risk calculator V3 (https://tools.bcsc-scc.ucdavis.edu/BC5yearRisk/#calculator), Gail Breast Cancer Risk Assessment Tool (https://bcrisktool.cancer.gov/calculator.html), Tyrer-Cuzick model V8 (https://ibis-risk-calculator.magview.com), or BOADICEA canrisk model (https://www.canrisk.org)
   * Known carriers of germline pathogenic/likely pathogenic variant in the following breast cancer predisposition genes (ATM, BRCA2, CHEK2, or PALB2)
   * Prior chest wall irradiation before age 30 years
3. English- or Spanish-speaking
4. Has a clinician affiliated with NYP/CUIMC
5. Able to provide written, verbal or online informed consent

Exclusion Criteria:

* Patients who have a prior history of invasive breast cancer or ductal carcinoma in situ are ineligible to participate.