Other risk factors exist, but they are regrettably
not able to be included in this calculator. For example,
a personal history of breast ca or ovarian ca, therapeutic radiation
treatment, having BRCA1 or BRCA2
gene mutations, chemical exposures, obesity, smoking,
etc. If you have these or other risk factors, then this calculator's
results will underestimate your risk.
The first part of the calculator uses the Gail model and is an emulation
of the NCI's Breast Cancer Risk Assessment Tool, based on published
risk statistics and methods gathered from peer-reviewed journals.
The second part of the calculator is the additional risk modifier
questions, which are also based on published relative risk statistics.
used for combining extra relative risks are the standard approach, but the final calculated result
cannot be compared to real data, which would require a 15-year study of a hundred thousand women, which is
impossible. So remember, the results are estimates, and discussing your risk
or breast symptoms with your own doctor, is always best.