Does knowledge about the genetics of breast cancer differ between nongeneticist physicians who do or do not discuss or order BRCA testing?

Purpose: To assess nongeneticist physicians' knowledge and experience with BRCA1/2 testing. Methods: In 1998, 2250 internists, obstetrician-gynecologists (Ob-Gyns), and oncologists practicing in Pennsylvania, Maryland, Massachusetts, New York, or New Jersey were surveyed. Results: Forty percent responded. Only 13% of internists, 21% of Ob-Gyns, and 40% of oncologists correctly answered all four knowledge questions about genetic aspects of breast cancer and testing for it. Knowledge was associated with discussing or ordering only among oncologists. Conclusion: Despite deficiencies in their knowledge about the genetic aspects of breast cancer, many nongeneticist physicians have discussed testing and some have ordered testing.