Researchers say a new test to predict a woman's odds of getting breast cancer works better than a method doctors have been using.
The test examines dozens of genes and personal factors like age and childbearing to gauge the risk in women who don't have a strong family history of the disease. Three-quarters of all breast cancer cases occur in women whose with no family history of it.
But cancer specialists are advising caution. A top doctor with the American Cancer Society says "the market is being flooded" with tests claiming to be better. Dr. Len Lichtenfeld says "There's no 'Consumer Reports' of genetic testing" to rate their accuracy and usefulness.
And some advocates for better breast cancer prevention say gene tests aren't a good idea until more is known about the best treatment options.