Relationship Between Helicobacter pylori and Blood Groups

Aim: It was aimed to see the relationship between Helicobacter pylori (H. pylori), a bacterium that settles in various parts of the stomach and duodenum, and blood groups and its distribution among blood groups. Material and Method: A retrospective analysis was conducted on 285 patients who underwent H. pylori testing between 2020 and 2022. Data on patients’ age, sex, H. pylori test results, and blood types were collected. Student's t-test was used for age comparisons and chi-square was used for gender distribution. Blood group distributions were expressed as percentages. Results: In the study, it was determined that 70% of H. pylori positive patients were female and 30% were male. The H. pylori negative individuals were reported as 21.4% male and 78.6% female and no significant difference was found in terms of gender. When age groups were analysed, H. pylori positive patients were found to be 53.5±15.8 years old and negative patients were found to be 52.4±15.8 years old and no significance was found (p=0.57). Among the patients with H. pylori, 10.9% were in group AB, 13.6% in group B, 37.3% in group O and 38.2% in group A. Furthermore, there is no significant distinction between negative patients and the opposite groups (p=0.242) Conclusion: The findings suggest that H. pylori infection is more frequently observed in individuals with blood groups A and O, indicating that these blood types may be associated with a higher susceptibility to the infection.