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Related Concept Videos

Serum Laboratory Studies, Stool Test, Breath Test01:30

Serum Laboratory Studies, Stool Test, Breath Test

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Gastrointestinal (GI) diagnostic studies are pivotal in confirming, ruling out, diagnosing, or staging various diseases, including cancers. Following diagnosis, allocating time for discussions with the patient and providing informational resources is crucial. Diagnostic assessments of the GI tract often occur in outpatient settings like endoscopy suites or GI labs. Preparation for these tests may include dietary restrictions, fasting, liquid bowel preparations, laxatives, enemas, and the...
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Related Experiment Video

Updated: Oct 20, 2025

Evaluation of Colorectal Cancer Risk and Prevalence by Stool DNA Integrity Detection
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Significant decrease in interval colorectal cancer incidence after implementing immunochemical testing in a

Jean-François Bretagne1, Aurore Carlo2, Christine Piette3

  • 1Rennes 1 University, 35000, Rennes, France. jf.bretagne@gmail.com.

British Journal of Cancer
|September 13, 2021
PubMed
Summary
This summary is machine-generated.

Switching to fecal immunochemical testing (FIT) significantly reduced interval colorectal cancer rates in a population-based screening program. FIT demonstrated higher sensitivity compared to guaiac fecal occult blood testing (gFOBT), supporting its adoption.

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Area of Science:

  • Gastroenterology
  • Oncology
  • Public Health

Background:

  • A mature population-based colorectal cancer screening program utilized biennial guaiac fecal occult blood testing (gFOBT).
  • The study evaluated the transition from gFOBT to fecal immunochemical testing (FIT).

Purpose of the Study:

  • To assess the impact of switching to FIT on interval cancer rates.
  • To compare the sensitivity of FIT versus gFOBT in colorectal cancer screening.

Main Methods:

  • Compared FIT results with previous gFOBT rounds in a large cohort (156,186 individuals, 279,041 tests).
  • Utilized logistic and Poisson regression to analyze interval cancer risk factors and test sensitivity.

Main Results:

  • A significant decrease in cumulative 2-year interval cancer incidence rates was observed after the switch to FIT (15.8 per 100,000 person-years vs. 55.7 with gFOBT).
  • FIT showed significantly higher sensitivity than gFOBT (OR = 6.70, P < 0.0001).

Conclusions:

  • Transitioning from gFOBT to FIT dramatically reduced interval colorectal cancer incidence.
  • The findings strongly encourage the adoption of FIT in screening programs currently using gFOBT.