Positive BRCA test results decreased from 85.7% (36 of 42) in 2008 to 55.6% (140 of 252) in 2018 (annual percentage change, −2.55; 95% CI, −3.45 to −1.64).

When did BRCA testing change?

BRCA mutation testing has been recommended by the U.S. Preventive Services Task Force (USPSTF) since 2005 for women whose family history demonstrates an increased risk for BRCA-related cancers.

How reliable is BRCA testing?

Genetic testing is not 100% accurate. If a test is negative, a person still has a chance of getting breast cancer. If the test is positive, there is still a 15% to 20% chance of not getting breast cancer.