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Cost-effectiveness model for colon cancer screening

D A Lieberman1

  • 1Department of Medicine, Oregon Health Sciences University, Portland, USA.

Gastroenterology
|December 1, 1995
PubMed
Summary
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One-time screening for colorectal cancer with combined fecal occult-blood testing and examination of the distal colon.

The New England journal of medicine·2001

Comparing colon cancer screening methods, one-time colonoscopy offers the greatest mortality reduction, while fecal occult blood tests (FOBT) are most cost-effective. Patient compliance significantly impacts all screening program effectiveness.

Area of Science:

  • Gastroenterology
  • Preventive Medicine
  • Health Economics

Background:

  • The comparative efficacy and effectiveness of various colon cancer screening modalities remain under-assessed.
  • A need exists for a standardized model to compare diverse colon screening programs.

Purpose of the Study:

  • To develop a comparative model for evaluating multiple colon screening programs.
  • To identify critical variables influencing the effectiveness of colon screening.

Main Methods:

  • Comparative analysis of five screening programs: annual fecal occult blood test (FOBT), flexible sigmoidoscopy, combined flexible sigmoidoscopy and FOBT, one-time colonoscopy, and air-contrast barium enema.
  • Sensitivity analyses were performed on key variables.
  • Cost-effectiveness was quantified as the cost per cancer death prevented.

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Main Results:

  • Annual FOBT alone demonstrated the lowest cancer death prevention rate.
  • Integrating flexible sigmoidoscopy with FOBT enhanced cancer prevention.
  • One-time colonoscopy yielded the most significant reduction in colorectal cancer mortality, primarily due to assumed polypectomy benefits.
  • FOBT alone emerged as the most cost-effective strategy, though its cost-effectiveness is sensitive to specific variables.

Conclusions:

  • The developed model highlights key factors influencing the cost-effectiveness of colon screening.
  • Patient compliance is a crucial determinant of the effectiveness across all evaluated screening programs.
  • Future research should prioritize patient education strategies to enhance screening compliance.