Related Experiment Video
Updated: Jan 10, 2026
07:35
Evaluation of Colorectal Cancer Risk and Prevalence by Stool DNA Integrity Detection
Published on: June 8, 2020
7.3K
Colonoscopy Versus Fecal Occult Blood Test Versus No Screening: A Comparative Analysis of Long-Term Effects
Deutsches Arzteblatt International
|November 25, 2025
Summary
German colorectal cancer (CRC) screening offers fecal immunochemical testing (FIT) or colonoscopy (CS), both significantly reducing CRC cases and deaths. Combining CS with FIT provides even greater protection against CRC mortality.
Area of Science:
- Oncology
- Preventive Medicine
- Health Services Research
Background:
- Colorectal cancer (CRC) is a major cause of cancer mortality, with significant potential for prevention through screening.
- Germany updated its CRC screening program in April 2025, offering new choices for individuals aged 50+.
- The updated program allows selection between biennial fecal immunochemical testing (FIT) or up to two screening colonoscopies (CS) spaced 10 years apart.
Purpose of the Study:
- To compare the long-term effectiveness of FIT-based screening, colonoscopy-based screening, and a combined approach within the German context.
- To evaluate the impact of these strategies on CRC incidence and mortality rates.
- To provide data for informed decision-making regarding CRC screening options.
Main Methods:
- Utilized COSIMO, a validated multi-stage simulation model for colorectal cancer.
- Simulated cohorts of 100,000 men and women aged 50-85, assuming full adherence to screening protocols.
- Calculated and compared cumulative CRC cases and CRC-related deaths for FIT, CS, and no screening scenarios.
Main Results:
- Both FIT and CS screening strategies demonstrated substantial reductions in CRC cases (69% for FIT, 77% for CS) and CRC-related deaths (82% for both) under full adherence.
- A combined strategy of initial colonoscopies followed by subsequent FIT screenings showed even greater reductions: 81% in CRC cases and 89% in deaths.
- The effectiveness of FIT and CS screening strategies was found to be similar in reducing CRC burden.
Conclusions:
- The current colorectal cancer screening strategies offered in Germany (FIT and CS) are highly effective and comparable in their impact.
- A combined screening approach, integrating colonoscopy and FIT, offers enhanced protection against CRC mortality.
- The study provides valuable insights to support informed choices for individuals participating in the German CRC screening program.
More Related Videos
06:28E-Patient Counseling Trial E-PACO: Computer Based Education versus Nurse Counseling for Patients to Prepare for Colonoscopy
Published on: August 1, 2019
8.7K
03:43Structured Approach to Colonoscopy Technique Optimization: A Single-Center Experience with Novice Endoscopists
Published on: July 11, 2025
594
Related Concept Videos
01:30Serum Laboratory Studies, Stool Test, Breath Test
735
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...
735
01:25Endoscopic Procedures II: Colonoscopy
579
The colon, or large intestine, is the final segment of the digestive system. Its primary functions include absorbing water and vitamins produced by gut bacteria and transforming waste from liquid to solid to form stool. In adults, the large intestine is approximately 5 feet long and consists of four main sections:
579
01:26Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy
356
This lesson explores three gastrointestinal imaging techniques: radionuclide testing, colonic transit studies, and virtual colonoscopy.
Radionuclide Testing
Radionuclide testing is a sophisticated medical technique for assessing gastrointestinal motility. It focuses on gastric emptying and colonic transit time. Radioactive markers track the movement of food through the digestive system, providing insights into gastrointestinal disorders.
In gastric emptying studies, a meal's liquid and...
Radionuclide Testing
Radionuclide testing is a sophisticated medical technique for assessing gastrointestinal motility. It focuses on gastric emptying and colonic transit time. Radioactive markers track the movement of food through the digestive system, providing insights into gastrointestinal disorders.
In gastric emptying studies, a meal's liquid and...
356
01:25Assessment of the Rectum and Anus
1.1K
Evaluating the rectum and anus plays a crucial role in conducting a thorough physical examination of the gastrointestinal system. Although it may be uncomfortable and often embarrassing for the patient, it holds immense diagnostic value, particularly in detecting gastrointestinal diseases and abnormalities. This guide will explain how to perform this assessment using inspection and palpation methods.
Rectal Inspection
Begin by inspecting the perianal and anal areas for color, texture, rashes,...
Rectal Inspection
Begin by inspecting the perianal and anal areas for color, texture, rashes,...
1.1K
01:26Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy
526
Sigmoidoscopy and laparoscopy are distinct medical procedures that enable physicians to internally inspect different parts of the GI tract. Although they serve different purposes, each is essential for diagnosing and, in some cases, treating various medical conditions.
Sigmoidoscopy
Sigmoidoscopy is a diagnostic procedure that uses a flexible sigmoidoscope equipped with a light source and camera to examine the rectum and sigmoid colon. The procedure involves inserting the tube through the anus...
Sigmoidoscopy
Sigmoidoscopy is a diagnostic procedure that uses a flexible sigmoidoscope equipped with a light source and camera to examine the rectum and sigmoid colon. The procedure involves inserting the tube through the anus...
526
01:20Comparing the Survival Analysis of Two or More Groups
541
Survival analysis is a cornerstone of medical research, used to evaluate the time until an event of interest occurs, such as death, disease recurrence, or recovery. Unlike standard statistical methods, survival analysis is particularly adept at handling censored data—instances where the event has not occurred for some participants by the end of the study or remains unobserved. To address these unique challenges, specialized techniques like the Kaplan-Meier estimator, log-rank test, and...
541