Related Experiment Video
Updated: Jul 10, 2026
07:35
Evaluation of Colorectal Cancer Risk and Prevalence by Stool DNA Integrity Detection
Published on: June 8, 2020
New stool screening tests for colorectal cancer
1Flinders Cancer Control Alliance, Flinders University, Adelaide, Australia. graeme.young@flinders.edu.au
Digestion
|October 20, 2007
Summary
Fecal immunochemical tests (FITs) offer improved sensitivity and specificity for colorectal neoplasia screening compared to guaiac-based fecal occult blood tests (GFOBTs). FITs are recommended to replace GFOBTs in population-based screening programs.
Area of Science:
- Gastroenterology
- Oncology
- Medical Diagnostics
Background:
- Colorectal cancer screening relies on detecting neoplasia through stool tests.
- Guaiac-based fecal occult blood tests (GFOBTs) show modest mortality impact.
- Newer stool tests utilize blood and cellular markers for enhanced detection.
Purpose of the Study:
- To evaluate the role of new-technology stool tests in colorectal neoplasia screening.
- To compare the efficacy of different stool-based screening methods.
Main Methods:
- Review of existing literature on fecal occult blood tests (FOBTs), fecal immunochemical tests (FITs), and fecal DNA tests.
- Analysis of sensitivity, specificity, and population participation rates.
Main Results:
- Fecal immunochemical tests (FITs) demonstrate superior sensitivity for neoplasia without compromising specificity.
- FITs improve population participation rates due to advanced stool-sampling technologies.
- Quantitative FITs offer flexible sensitivity:specificity ratios for screening.
- Fecal DNA tests show mixed results, with improved cancer sensitivity but unclear advantages over FITs.
Conclusions:
- Fecal immunochemical tests (FITs) should supersede GFOBTs as the primary screening tool for large populations.
- Current evidence does not clearly support non-hemoglobin molecular tests over FITs for screening.
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