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Colorectal Cancer Screening Based on Predicted Risk: A Randomized Controlled Trial.

Ekaterina Plys1, Jean-Luc Bulliard1, Aziz Chaouch1

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Summary
This summary is machine-generated.

Personalized colorectal cancer (CRC) risk information significantly increased risk-appropriate CRC screening uptake. This targeted approach improved screening alignment without affecting overall participation rates.

Keywords:
SwitzerlandWhitecolorectal cancer screeningorganized screeningpersonalized screeningrisk communication

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Area of Science:

  • Oncology
  • Preventive Medicine
  • Public Health

Background:

  • Colorectal cancer (CRC) screening commonly utilizes colonoscopy and fecal immunochemical testing (FIT).
  • Optimizing CRC screening by aligning methods with individual risk may reduce adverse effects, patient burden, and healthcare costs.
  • Personalized risk assessment is crucial for effective cancer prevention strategies.

Purpose of the Study:

  • To evaluate the impact of communicating personalized CRC risk and tailored screening recommendations on risk-appropriate screening uptake.
  • To assess whether personalized risk communication influences overall screening participation in an organized screening program.
  • To determine the effectiveness of a mailed brochure intervention in a general population setting.

Main Methods:

  • A randomized controlled trial was conducted in Vaud, Switzerland, involving residents aged 50-69 years.
  • The intervention group received a brochure detailing individual 15-year CRC risk and screening advice.
  • The control group received standard information comparing FIT and colonoscopy; the primary outcome was risk-appropriate screening at 6 months.

Main Results:

  • Risk-appropriate screening completion was significantly higher in the intervention group (37%) compared to the control group (23%), an absolute difference of 14%.
  • No significant difference in overall screening uptake was observed between the intervention (50%) and control (49%) groups.
  • The study included 258 participants in the intervention arm and 257 in the control arm.

Conclusions:

  • Communicating personalized CRC risk and screening recommendations effectively enhances risk-appropriate screening uptake in a general population.
  • This personalized approach successfully aligns screening modalities with individual cancer risk without altering overall screening participation.
  • The findings suggest a valuable strategy for optimizing CRC screening, resource allocation, and patient outcomes.