Does a family history of male breast cancer influence risk perception and use of genetic testing?

We sought to determine differences in risk perception and use of genetic testing in these individuals compared with those with a family history of female breast cancer (FHxFBC) in a population-based cohort. Data from the 2005 National Health Interview Survey were used to assess risk perception and use of genetic counseling in individuals with a family history of male breast cancer (FHxMBC) versus those with a FHxFBC. Of the 2429 individuals with a first-degree relative with breast cancer surveyed, 21 (0.7%) had a FHxMBC, whereas 2408 (99.3%) had a FHxFBC. Women who had a FHxMBC perceived themselves as being at higher risk for developing breast cancer than those with a FHxFBC (61.5 vs 46.5%, P = 0.011). Fewer individuals with a FHxMBC had heard about genetic testing than those with a FHxFBC (38.4 vs 50.8%, P = 0.322). Of these, none of the individuals with a FHxMBC discussed this with their physician (vs 13% of individuals with a FHxFBC, P = 0.004) and none underwent genetic testing (vs 3% of individuals with a FHxFBC, P = 0.009). Women with a FHxMBC perceive this as being associated with increased cancer risk, but few discuss this with their physicians. Physicians should be proactive in discussing risk with these patients.