The nurse is reviewing risk factors for breast cancer. Which of these women have risk factors that place them at a higher risk for breast cancer?

A) 37-year-old who is slightly overweight
B) 42-year-old who has had ovarian cancer
C) 45-year-old who has never been pregnant
D) 66-year-old whose mother had breast cancer

The woman at highest risk is the 66-year-old woman whose mother had breast cancer. This woman has two risk factors for breast cancer with >4.0 relative risk, which are her age (65) and a first-degree relative (her mother) with breast cancer. The 37-year-old woman who is slightly overweight does not have any risk factors for breast cancer. The 42-year-old woman who has had ovarian cancer has one risk factor for breast cancer with a relative risk for 1.1 to 2.0 and that is her personal history of ovarian cancer. The 45-year-old woman who has never been pregnant has one risk factor for breast cancer with a relative risk for 1.1 to 2.0 and that is having no full-term pregnancies.