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Research ArticleResearch

Family physicians’ choices of and opinions on colorectal cancer screening modalities

Michael Zettler, Brent Mollon, Vitor da Silva, Brett Howe, Mark Speechley and Chris Vinden
Canadian Family Physician September 2010; 56 (9) e338-e344;
Michael Zettler
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Brent Mollon
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Vitor da Silva
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Brett Howe
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Mark Speechley
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Chris Vinden
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  • For correspondence: cvinden@sympatico.ca
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Article Figures & Data

Tables

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    Table 1

    Respondent characteristics

    VARIABLESN (%)*
    Sex
      • Male207 (46.0)
      • Female243 (54.0)
    Age, y
      • < 302 (0.4)
      • 30–39113 (24.8)
      • 40–49160 (35.1)
      • 50–59134 (29.4)
      • ≥ 6047 (10.3)
    Practising family medicine, y
      • 1–572 (15.6)
      • 6–1073 (15.8)
      • 11–1571 (15.3)
      • 16–2075 (16.2)
      • ≥21172 (37.1)
    Population of community served
      • < 10 00073 (15.9)
      • 10 000–99 99995 (20.7)
      • 100 000–499 999123 (26.8)
      • 500 000–1 000 00063 (13.7)
      • > 1 000 000105 (22.9)
    Practice format
      • Group354 (76.3)
      • Single or other110 (23.7)
    Teaching or university affiliation
      • Yes183 (42.5)
      • No248 (57.5)
    Recall reading ColonCancerCheck pamphlet
      • Yes398 (86.9)
      • No30 (6.6)
      • Unsure29 (6.3)
      • Did not receive the information package1 (0.2)
    Perceived knowledge of CRC screening (1 = novice; 3 = average; 5 = expert)
      • 13 (0.6)
      • 27 (1.5)
      • 3249 (53.9)
      • 4177 (38.3)
      • 526 (5.6)
    • CRC—colorectal cancer.

    • ↵* A total of 465 surveys were received. Any deviation from this number in the total responses represents missing data (eg, abstain, unclear responses).

    • View popup
    Table 2

    Results of CRC screening–related responses

    RESPONSESN (%)*
    Preference for personal CRC screening
      • FOBT every 2 y181 (39.6)
      • Colonoscopy every 10 y232 (50.8)
      • Flexible sigmoidoscopy every 5 y2 (0.4)
      • Flexible sigmoidoscopy with FOBT every 5 y23 (5.0)
      • Double-contrast barium enema every 5 y1 (0.2)
      • None of the above18 (3.9)
    Perceived patient preference for CRC screening
      • FOBT every 2 y288 (64.1)
      • Colonoscopy every 10 y130 (29.0)
      • Flexible sigmoidoscopy every 5 y1 (0.2)
      • Flexible sigmoidoscopy with FOBT every 5 y17 (3.8)
      • Double-contrast barium enema every 5 y2 (0.4)
      • None of the above11 (2.4)
    Average wait time for colonoscopy in community, mo
      • < 282 (17.9)
      • 2–6231 (50.5)
      • 6–12106 (23.2)
      • 12–1829 (6.3)
      • > 189 (2.0)
    Perceived sensitivity of a single standard FOBT kit, %
      • 0–1941 (8.9)
      • 20–39102 (22.2)
      • 40–59153 (33.3)
      • 60–79127 (27.7)
      • 80–10036 (7.8)
    Screening modality that will have the greatest effect on the reduction of CRC mortality in Ontario
      • FOBT every 2 y93 (20.9)
      • Colonoscopy every 10 y242 (54.4)
      • Flexible sigmoidoscopy every 5 y5 (1.1)
      • Flexible sigmoidoscopy with FOBT every 5 y44 (9.9)
      • Double-contrast barium enema every 5 y2 (0.4)
      • None of the above6 (1.3)
      • Do not know53 (11.9)
    Most cost-effective CRC screening modality
      • FOBT every 2 y302 (66.1)
      • Colonoscopy every 10 y62 (13.6)
      • Flexible sigmoidoscopy every 5 y1 (0.2)
      • Flexible sigmoidoscopy with FOBT every 5 y23 (5.0)
      • Double-contrast barium enema every 5 y3 (0.7)
      • None of the above3 (0.7)
      • Do not know63 (13.8)
    • CRC—colorectal cancer, FOBT—fecal occult blood testing.

    • ↵* A total of 465 surveys were received. Any deviation from this number in the total responses represents missing data (eg, abstain, unclear responses); percentages do not add to 100% owing to rounding.

    • View popup
    Table 3

    Respondents’ choice of personal CRC screening modality, by responses to CRC screening–related questions

    QUESTIONSSCREENING PREFERENCE OF RESPONDENTSNO. OF RESPONSES* Embedded ImagePVALUE
    FOBT N (%)COLONOSCOPY N (%)OTHER N (%)
    What would your patients most want for their own screening?444150.5< .001
      • FOBT every 2 y157 (55.3)106 (37.3)21 (7.4)
      • Colonoscopy every 10 y17 (13.2)108 (83.7)4 (3.1)
      • Other5 (16.1)10 (32.3)16 (51.6)
    What is the wait time for colonoscopy in your community?4504.312.37
      • 0–6 mo129 (42.0)146 (47.6)32 (10.4)
      • 6–12 mo37 (35.2)61 (58.1)7 (6.7)
      • > 12 mo13 (34.2)21 (55.3)4 (10.5)
    What is the sensitivity of a single FOBT kit?45214.75.005
      • < 40%48 (34.0)78 (55.3)15 (10.6)
      • 40%–59%48 (31.8)89 (58.9)14 (9.3)
      • ≥ 60%81 (50.6)64 (40.0)15 (9.4)
    Which screening modality will have the greatest effect on the reduction of CRC-related mortality in Ontario?388113.3< .001
      • FOBT every 2 y60 (65.9)26 (28.6)5 (5.5)
      • Colonoscopy every 10 y59 (24.6)169 (70.4)12 (5.0)
      • Other26 (45.6)11 (19.3)20 (35.1)
    What is the most cost-effective method of CRC screening in Ontario?38987.12< .001
      • FOBT every 2 y145 (48.5)134 (44.8)20 (6.7)
      • Colonoscopy every 10 y5 (8.3)53 (88.3)2 (3.3)
      • Other5 (16.7)12 (40.0)13 (43.3)
    • CRC—colorectal cancer, FOBT—fecal occult blood testing.

    • ↵* A total of 465 surveys were received. Any deviation from this number in the total responses represents missing data (eg, abstain, unclear responses); percentages do not add to 100% owing to rounding.

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Canadian Family Physician: 56 (9)
Canadian Family Physician
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1 Sep 2010
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Family physicians’ choices of and opinions on colorectal cancer screening modalities
Michael Zettler, Brent Mollon, Vitor da Silva, Brett Howe, Mark Speechley, Chris Vinden
Canadian Family Physician Sep 2010, 56 (9) e338-e344;

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Michael Zettler, Brent Mollon, Vitor da Silva, Brett Howe, Mark Speechley, Chris Vinden
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