Research Article

Patterns of Cancer Genetic Testing: A Randomized Survey of Oregon Clinicians

Table 2

Summary data from the 2010 Oregon Health Care Provider Survey, by provider group.
(a) Demographic and practice characteristicsa,b.

  PCPsc  
n (column %)d  
(95%  CI)e
Naturopaths  
n (column %)d  
(95%  CI)e
OB-GYNs  
n (column %)d
(95%  CI)e
Specialistsf
n (column %)d  
(95%  CI)e

Total363 (30.0%)216 (17.9%)333 (27.5%)297 (24.6%)
(27.5%–32.7%)(15.8%–20.1%)(25.1%–30.1%)(22.2%–27.1%)

Mean age (years)357 (48.0 yrs)211  (43.5 yrs)329 (47.8 yrs)288 (47.6 yrs)
26 yrs–76 yrs ( 28 yrs–70 yrs) 27 yrs–80 yrs 27 yrs–79 yrs

Number of patients seen per week

<50104 (28.8%)185 (86.4%)103 (31.0%)127 (43.3%)
(24.4%–33.8%)(81.2%–90.4%)(26.3%–36.2%)(37.8%–49.1%)
50–75129 (35.7%)25 (11.7%)126 (38.0%)121 (41.3%)
(31.0%–40.9%)(8.0%–16.7%)(32.9%–43.3%)(35.8%–47.0%)
>75127 (35.5%)4 (1.9%)103 (31.0%)45 (15.4%)
(30.5%–40.4%)(0.7%–4.9%)(26.3%–36.2%)(11.7%–20.0%)

Recommend BOCh  
screening to patients w/o cancer
394 (97.5%)196 (92.0%)326 (98.5%)187 (63.6%)
(95.2%–98.7%)(87.5%–95.0%)(96.4%–99.4%)(57.9%–68.9%)

Recommend CRCi  
screening to patients w/o cancer
355 (98.3%)204 (95.8%)316 (94.9%)275 (93.5%)
(96.4%–99.3%)(92.1%–97.8%)(91.9%–96.8%)(90.1%–95.8%)

Treat patients for BOCh47 (13.1%)79 (36.9%)53 (16.1%)172 (58.3%)
(10.0%–17.0%)(30.7%–43.6%)(12.5%–20.4%)(52.6%–63.8%)

Treat patients for CRCi48 (13.3%)63 (29.4%) 0241 (81.1%)
(10.1%–17.2%)(23.7%–35.9%)(76.3%–85.2%)

aCategory totals may be less than the total number of respondents, due to missing values.
bBolded estimates indicate significant findings.
cPCPs: primary care providers which include family physicians, internal medicine physicians, primary care nurse practitioners, and primary care physician assistants.
dThe column % reflects the percent responding within each practice category.
eCI: confidence interval.
fSpecialists consisted of surgeons, colorectal surgeons, general surgeons, gastroenterologists, oncologists, and gynecologic oncologists.
gRange in years.
hBOC: breast and ovarian cancer.
iCRC: colorectal cancer.
(b) Confidence in personal knowledge of medical geneticsa,b.

PCPsc  
(column %)d
(95%  CI)e
Naturopaths  
(column %)d  
(95%  CI)e
OB-GYNs  
(column %)d  
(95%  CI)e
Specialistsf  
(column %)d  
(95%  CI)e

Confidence in personal knowledge of BOCg genetics

Not at all111 (30.6%)  92 (42.6%)  23 (6.9%)  87 (30.0%)
(26.1%–35.5%)(36.2%–49.3%)(4.6%–10.2%)(25.0%–35.5%)
Somewhat188 (51.8%)90 (41.7%)132 (39.6%)115 (39.7%)
(46.6%–56.9%)(35.3%–48.4%)(34.5%–45.0%)(34.2%–45.4%)
Moderately/very64 (17.6%)  34 (15.7%)  178 (53.5%)  88 (30.3%)  
(14.1%–21.9%)(11.5%–21.2%)(48.1%–58.8%)(25.3%–36.0%)

Confidence in personal knowledge of CRCh genetics

Not at all110 (30.5%)  114 (52.8%)  77 (23.2%)  43 (11.3%)  
(25.9–35.4)(46.1–59.4)(19.0–28.0)(8.1–15.5)
Somewhat190 (52.6%)  81 (37.5%)  176 (53.0%)  105 (36.0%) 
(47.5%–57.7%)(31.3%–44.2%)(47.6%–58.3%)(30.7%–41.6%)
Moderately/very61 (16.9%)  21 (9.7%)  79 (23.8%)  154 (52.7%)  
(13.4%–21.1%)(6.4–14.5)(19.5–28.7)(47.0–58.4)

aCategory totals may be less than the total number of respondents, due to missing values.
bBolded estimates indicate significant findings.
cPCPs: primary care providers which include family physicians, internal medicine physicians, primary care nurse practitioners, and primary care physician assistants.
dThe column % reflects the percent responding within each practice category.
eCI: confidence interval.
fSpecialists consisted of surgeons, colorectal surgeons, general surgeons, gastroenterologists, oncologists, and gynecologic oncologists.
gBOC: breast and ovarian cancer.
hCRC: colorectal cancer.
(c) Referral of patients to a genetic specialista,b.

PCPsc  
(column %)d  
(95%  CI)e
Naturopaths  
(column %)d  
(95%  CI)e
OB-GYNs  
(column %)d  
(95%  CI)e
Specialistsf  
(column %)d  
(95%  CI)e

Referg patients w/o cancer to a genetic specialist for BRCA testing111 (67.7%)27 (50.0%)225 (87.5%)82 (75.9%)
(60.1%–74.4%)(36.9%–63.1%)(82.9%–91.1%)(67.0%–83.1%)

Referg patients w/cancer to a genetic specialist for BRCA testing19 (55.9%)25 (53.2%)40 (87.0%)121 (75.6%)
(39.1%–71.5%)(39.0%–66.9%)(73.8%–94.0%)(68.3%–81.7%)

Referg patients w/o cancer to a genetic specialist for MMR testing30 (56.6%) NAh105 (91.3%)122 (77.2%)
(43.0%–69.2%)(84.5%–95.3%)(70.0%–83.1%)

Referg patients w/cancer to a genetic specialist for MMR testing NAh NAh131 (81.9%)138 (78.0%)
(75.1%–87.1%)(71.2%–83.5%)

aCategory totals may be less than the total number of respondents, due to missing values.
bBolded estimates indicate significant findings.
cPCPs: primary care providers which include family physicians, internal medicine physicians, primary care nurse practitioners, and primary care physician assistants.
dThe column % reflects the percent responding within each practice category.
eCI: confidence interval.
fSpecialists consisted of surgeons, colorectal surgeons, general surgeons, gastroenterologists, oncologists, and gynecologic oncologists.
gAmong providers who suspect a mutation, those who always or usually refer to a genetic specialist.
hUnable to report estimates due to small cell size.