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Related Experiment Videos

Colorectal screening by a self-completion questionnaire.

P A Farrands, J D Hardcastle

    Gut
    |May 1, 1984
    PubMed
    Summary
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    Self-completion questionnaires are not valuable for early colorectal neoplasia detection. Faecal occult blood screening is more effective in identifying colorectal cancer and adenomas, even in individuals without reported symptoms.

    Area of Science:

    • Gastroenterology
    • Oncology
    • Public Health

    Background:

    • Colorectal cancer is a significant health concern.
    • Early detection of colorectal neoplasia improves patient outcomes.
    • Symptom-based screening has limitations in identifying early-stage disease.

    Purpose of the Study:

    • To assess the prevalence of colorectal symptoms in a large cohort.
    • To compare the effectiveness of self-completion questionnaires versus faecal occult blood screening for detecting colorectal neoplasia.
    • To evaluate the utility of questionnaires in identifying individuals with colorectal adenomas or carcinomas.

    Main Methods:

    • A cohort of 1533 individuals completed a self-completion questionnaire regarding colorectal symptoms.
    • Results were compared with faecal occult blood (FOB) screening.

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  • Prevalence of symptoms like rectal bleeding, diarrhea, and changes in bowel habit was recorded.
  • Individuals with symptoms were examined, and FOB results were analyzed for neoplasia detection.

    • Main Results:

    • 12.3% reported a change in bowel habit, 8.7% diarrhea, and 6.6% rectal bleeding.
    • Only 12 individuals had a positive FOB test, while 128 reported symptoms.
    • Questionnaire examination identified one adenoma.
    • FOB screening identified two carcinomas and four adenomas, with most positive cases not reporting symptoms.

    Conclusions:

    • Self-completion questionnaires have limited value in the early detection of colorectal neoplasia.
    • Faecal occult blood screening is more effective than symptom reporting for identifying colorectal cancer and adenomas.
    • Current screening strategies may need to prioritize FOB testing over symptom-based questionnaires for early detection.