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Open AccessArticle

Lack of Association between Past Helicobacter pylori Infection and Diabetes: A Two-Cohort Study

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Center for Health Promotion, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul 06351, Korea
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Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul 06351, Korea
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Statistics and Data Center, Research Institute for Future Medicine, Samsung Medical Center, 81 Irwon-ro, Gangnam-gu, Seoul 06351, Korea
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Author to whom correspondence should be addressed.
Nutrients 2019, 11(8), 1874; https://doi.org/10.3390/nu11081874
Received: 30 June 2019 / Revised: 6 August 2019 / Accepted: 9 August 2019 / Published: 12 August 2019
Helicobacter pylori (H. pylori) may be involved in diabetes and other insulin-related processes. This study aimed to investigate the associations between H. pylori infection and the risks of type 2 diabetes, impaired glucose tolerance (IGT), diabetic nephropathy, and poor glycemic control. We retrospectively evaluated 16,091 subjects without diabetes at baseline who underwent repeated health examinations. Subjects were categorized according to whether they were seropositive and seronegative for H. pylori infection. Hazard ratios (HRs) and 95% confidence intervals (CIs) were calculated using Cox proportional hazard models. The serological results were validated using an independent cohort (n = 42,351) based on a histological diagnosis of H. pylori infection. During 108,614 person-years of follow-up, 1338 subjects (8.3%) developed newly diagnosed diabetes, although the cumulative incidence of diabetes was not significantly related to serological H. pylori status. The multivariate Cox proportional-hazards regression models revealed that H. pylori seropositivity was not significantly associated with diabetes (HR: 1.01, 95% CI: 0.88–1.16; p = 0.854), IGT (HR: 0.98, 95% CI: 0.93–1.04; p = 0.566), diabetic nephropathy (HR: 0.99, 95% CI: 0.82–1.21; p = 0.952), or poor glycemic control (HR: 1.05, 95% CI: 0.90–1.22; p = 0.535). Similarly, histopathological findings of H. pylori infection were not significantly associated with diabetes (p = 0.311), diabetic nephropathy (p = 0.888), or poor glycemic control (p = 0.989). The findings from these large Korean cohorts indicate that there does not appear to be a role for past H. pylori infection in the development of diabetes, IGT, diabetic nephropathy, or poor glycemic control. View Full-Text
Keywords: Helicobacter pylori; Diabetes Mellitus; impaired glucose tolerance; diabetic nephropathy; poor glycemic control Helicobacter pylori; Diabetes Mellitus; impaired glucose tolerance; diabetic nephropathy; poor glycemic control
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Pyo, J.H.; Lee, H.; Choi, S.C.; Cho, S.J.; Choi, Y.-H.; Min, Y.W.; Min, B.-H.; Lee, J.H.; Yoo, H.; Kim, K.; Kim, J.J. Lack of Association between Past Helicobacter pylori Infection and Diabetes: A Two-Cohort Study. Nutrients 2019, 11, 1874.

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