• Mohamad Suki, Fadi Abu-Baker, Amani Beshara, Baruch Ovadia, Oren Gal, and Yael Kopelman.
• Department of Gastroenterology and Hepatology, Hillel Yaffe Medical Center, Hadera, Israel; affiliated with Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel.
• Isr Med Assoc J. 2023 Dec 1; 25 (12): 815818815-818.

BackgroundWith age, colorectal cancer (CRC) prevalence rises. The elderly (> 75 years), and the very elderly (> 85 years) are especially vulnerable. The advantages of screening must be assessed in the context of diminished life span and co-morbidities.ObjectivesTo compare CRC findings in colonoscopies that were performed following a positive fecal occult blood test/fecal immunochemical test (FOBT/FIT) in both elderly and very elderly age groups with those of younger patients.MethodsWe identified colonoscopies conducted between 1998 and 2019 following a positive stool test for occult blood in asymptomatic individuals. A finding of malignancy was compared between the two patient age groups. Furthermore, a sub-analysis was performed for positive malignancy findings in FOBT/FIT among patients > 85 years compared to younger than < 75 years.ResultsWe compared the colonoscopy findings in 10,472 patients: 40-75 years old (n=10,146) vs. 76-110 years old (n=326). There was no significant difference in prevalence of CRC detection rate between the groups following positive FOBT/FIT (2.1% vs. 2.7%, P = 0.47). Similar results for non-significant differences were obtained in the sub-analysis compared to malignancy detection rates in the very elderly 0% (n=0) vs. 2.1% for < 75 years old (n=18), P = 0.59.ConclusionsAlthough the prevalence of CRC increases with age, no significant increase in the detection rate of CRC by FOBT was found in either the elderly or very elderly age groups. Screening colonoscopies in elderly patients should be performed only after careful consideration of potential benefits, risks, and patient preferences.

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