How Do We Get More People Screened for Colorectal Cancer: Gastroenterology| September 2026
Introduction:
CRC screening reduces incidence and mortality, yet participation remains suboptimal. This network meta-analysis of 76 randomized trials compared strategies for improving screening uptake.
Why was this study needed?
Screening only works when patients complete it.
Access, logistics, awareness and fear remain major barriers.
The most effective outreach strategy remains uncertain.
Which Strategies Worked Best?
Two approaches performed best:
Patient navigation: Actively helping patients overcome barriers produced the greatest improvement.
Mailed FIT: Sending FIT directly to patients was highly effective and scalable.
Navigation also outperformed simple reminders, showing that helping patients complete screening matters more than simply recommending it.
What About Reminders and Education?
Educational multimedia and reminders produced more modest benefits. Digital education appeared more useful in populations with higher baseline screening uptake.
Mailed FIT vs Colonoscopy Outreach
Mailed FIT was more effective than direct colonoscopy outreach for increasing participation.
This does not mean FIT is a better test—it means convenient home-based screening reduces barriers to completion.
Baseline Screening Uptake Matters
Where baseline screening was <30%, mailed FIT more than tripled participation, making it particularly attractive for underserved populations.
Clinical and Public Health Implication:
Screening programs should move from:
Recommend screening → wait
to:
Identify → actively reach out → provide easy screening → navigate positive FIT to colonoscopy
Caution:
Most studies assessed short-term completion. FIT programs still require repeated testing and colonoscopy after a positive result.
Bottom Line:
Patient navigation and mailed FIT are the most effective strategies for increasing CRC screening uptake, particularly mailed FIT in low-participation populations. Making screening easy to access and complete is key.
