How does race affect breast cancer risk?

It's been long known that Hispanic women are less likely to get breast cancer than white women but now a new study examines why.

Researchers at the University of Colorado at Colorado Springs studied women with breast cancer. Among the white women, between 62 percent and 75 percent had known risk factors for breast cancer – behaviors or traits that have been found to increase one’s chances of getting the disease, for example, use of hormone replacement therapy.