Does Elderly-Onset Inflammatory Bowel Disease Increase Risk of Colorectal Cancer? A Systematic Review and Meta-Analysis

Overview

Journal J Clin Med

Specialty General Medicine

Date 2024 Jan 11

PMID 38202155

Authors

Mohammad Zamani

Shaghayegh Alizadeh-Tabari

Affiliations

Soon will be listed here.

Abstract

Background: Although younger adults with inflammatory bowel disease (IBD) are known to have an increased risk of developing colorectal cancer (CRC), the impact of IBD on CRC risk in elderly patients is not yet fully understood. Therefore, we conducted this systematic review and meta-analysis to address this knowledge gap.

Methods: We thoroughly searched Embase, PubMed, and Scopus, covering the literature from inception to 31 August 2023, in any language. We enrolled population-based cohort studies that appraised the risk of CRC development in elderly patients (≥60 years) with IBD as compared to the non-IBD population. Our meta-analysis provided pooled relative risk (RR) with 95% confidence intervals (CIs) using a random-effect model.

Results: Out of 3904 citations, 3 eligible cohort studies were ultimately included, reporting 694 CRC events in 35,187 patients with IBD. According to analysis, the risk of developing CRC did not increase in patients with elderly-onset IBD (RR = 1.17 [95% CI: 0.86-1.47]; I = 62.6%). This lack of a significant association was observed in both patients with Crohn's disease (RR = 1.28 [95% CI: 0.88-1.69]) and ulcerative colitis (RR = 0.99 [95% CI: 0.90-1.09]) ( for interaction = 0.166).

Conclusion: Our findings revealed no significant increase in the risk of incident CRC in patients with elderly-onset IBD, suggesting that intense screening of these patients for CRC may not be necessary.

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