• Lina Feng, Kai Zhao, Ge Wang, Ruonan Dong, Mingyu Zhang, Suhong Xia, Yu Zhang, Wangdong Zhou, Dean Tian, Wei Yan, and Jiazhi Liao.
• Department of Gastroenterology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
• Int J Med Sci. 2023 Jan 1; 20 (2): 219224219-224.

AbstractBackground: No study on the relationship between common abnormalities of the upper digestive tract and colorectal polyps (CPs) has been conducted. Methods: 33439 patients were enrolled in this cross-sectional study, of which 7700 had available Helicobacter pylori (H.pylori) information. All participants underwent colonoscopy and esophagogastroduodenoscopy (EGD) simultaneously or within six months at Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology from January 2015 to November 2021. The study assessed whether the risk of CPs was affected by the following gastroesophageal diseases: atrophic gastritis (AG), gastric polyps, Barrett's esophagus and reflux esophagitis, bile reflux, gastric ulcer, gastric mucosal erosion, superficial gastritis, and gastric H.pylori infection. The crude and adjusted odds ratios (ORs) of H.pylori on the occurrence of CPs were computed by logistic regression. Additionally, we also evaluated whether AG had an impact on the relationship between H.pylori infection and CPs. Results: A total of 10600 cases (31.7%) were diagnosed as CPs. Multivariate logistic analysis showed that age, male (OR, 1.80; 95% confidence interval [CI], 1.61 to 2.02), gastric polyps (OR, 1.61; 95% CI, 1.05 to 2.46 for hyperplastic polyps; OR, 1.45; 95% CI, 1.09 to 1.94 for fundic gland polyps), H.pylori infection (OR, 1.21; 95% CI, 1.07 to 1.37) and atrophic gastritis (OR, 1.38; 95% CI, 1.21 to 1.56) were independent risk factors for colorectal polyps. Moreover, the combined effect of H.pylori infection and AG was slightly greater than the sum of their individual effects on the risk of CPs, but there was no additive interaction between them. Conclusions: Gastric conditions including gastric polyps, H.pylori infection, and AG increased the risk of CPs. However, Barrett's esophagus and reflux esophagitis, bile reflux, erosive gastritis, gastric ulcer, and superficial gastritis might not have relationship with CPs occurrence.© The author(s).

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