Table 3

 Weighted percentages* (and 95% CI) of physician responses to the question about commercial availability of predictive cancer genetic tests, by medical specialty

GenesBased on your current knowledge, are tests for the following inherited cancer susceptibility genes commercially available?
Medical specialty
All specialties combinedFamily or general practiceInternal medicineObstetrics/gynaecologyOncologistsGeneral surgeonsGastro-enterologists
*Unadjusted percentages (and 95% CI) representing physician responses are weighted to the U.S. population of physicians in the selected specialties. “Yes”, “no”, and “not sure” percentages within a specialty may not add to 100% due to non-response for some items.
BRCA1 and 2 genes for hereditary breast/ovarian cancer
    Yes60.7 (58.0 to 63.4)44.9 (39.6 to 50.2)60.8 (55.5 to 66.1)91.2 (86.7 to 95.7)90.9 (87.0 to 94.8)75.6 (68.0 to 83.2)35.3 (20.6 to 50.0)
    No4.0 (2.8 to 5.1)4.2 (2.0 to 6.4)4.6 (2.2 to 7.0)2.6 (0.1 to 5.1)1.9 (0.1 to 3.7)5.0 (1.1 to 8.9)2.5 (0.0 to 7.4)
    Not sure33.2 (30.4 to 35.9)48.6 (43.3 to 53.9)31.6 (26.5 to 36.7)5.7 (2.2 to 9.2)4.0 (1.5 to 6.5)17.7 (10.8 to 24.6)62.2 (47.3 to 77.1)
MLH1 and MSH2 genes for hereditary non-polyposis colorectal cancer
    Yes23.1 (20.6 to 25.6)16.8 (12.9 to 20.7)22.7 (18.0 to 27.4)22.4 (15.7 to 29.1)42.8 (36.1 to 49.5)35.7 (27.1 to 44.3)43.8 (28.5 to 59.1)
    No4.0 (2.4 to 5.6)7.1 (4.4 to 9.8)7.2 (4.5 to 9.9)4.5 (1.2 to 7.8)12.4 (8.1 to 16.7)7.2 (2.7 to 11.7)4.0 (0.0 to 9.7)
    Not sure67.8 (65.1 to 70.5)73.2 (68.5 to 77.9)67.1 (62.0 to 72.2)72.4 (65.1 to 79.7)41.5 (35.0 to 48.0)55.4 (46.6 to 64.2)52.2 (36.9 to 67.5)
APC gene for familial adenomatous polyposis
    Yes25.7 (23.2 to 28.2)19.6 (15.5 to 23.7)26.2 (21.3 to 31.1)17.5 (11.2 to 23.8)44.0 (37.3 to 50.7)33.0 (24.6 to 41.4)76.4 (63.3 to 89.5)
    No5.6 (4.2 to 7.0)5.0 (2.6 to 7.4)6.2 (3.5 to 8.9)5.8 (2.1 to 9.5)7.7 (4.2 to 11.2)6.3 (2.0 to 10.6)2.5 (0.0 to 7.4)
    Not sure66.5 (63.8 to 69.2)72.8 (68.1 to 77.5)64.5 (59.2 to 69.8)76.0 (69.1 to 82.9)44.6 (37.9 to 51.3)59.0 (50.2 to 67.8)21.2 (8.7 to 33.7)