4.5 Review

Colorectal cancer risk in East Asian patients with Helicobacter pylori infection: A systematic review and meta-analysis

Journal

MEDICINE
Volume 102, Issue 10, Pages -

Publisher

LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/MD.0000000000033177

Keywords

colorectal cancer; East Asian; Helicobacter pylori; meta-analysis; risk

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This systematic review and meta-analysis aimed to evaluate the association between H pylori infection and colorectal cancer risk in East Asian patients. The analysis revealed a positive connection between H pylori infection and increased risk of colorectal cancer in East Asian patients, particularly in China.
Background: The aim of this systematic review and meta-analysis was to assess the relationship between H pylori infection and colorectal cancer risk in East Asian patients. Methods: Two researchers independently searched for relevant studies in the PubMed, Cochrane, and Embase databases from inception up to April 2022. A meta-analysis was then performed to calculate pooled odds ratios (ORs) with corresponding 95% confidence intervals (CIs) using a random effects model. Results: Nine studies involving 6355 patients were included. Overall, we observed that H pylori infection was associated with an increased risk of colorectal cancer in East Asian patients (OR = 1.48, 95% CI: 1.10-1.99, I-2 = 70%), although significant heterogeneity was identified among studies. Subgroup analysis revealed that H pylori infection was associated with an increased risk of colorectal cancer in China (OR = 1.58, 95% CI 1.05-2.37, I-2 = 81%) but not in Japan and Korea (OR = 1.26, 95% CI 0.93-1.70, I-2 = 0%). Conclusion: This meta-analysis identified a positive association between H pylori infection and colorectal cancer risk in East Asian patients, especially in China.

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