Helicobacter pylori infection, chronic corpus atrophic gastritis and pancreatic cancer risk in the European Prospective Investigation into Cancer and Nutrition (EPIC) cohort: A nested case-control study.

Jiaqi Huang, Ulrika Zagai, Goran Hallmans, Olof Nyren, Lars Engstrand, Rachael S. Stolzenberg-Solomon, Eric J. Duell, Kim Overvad, Verena A. Katzke, Rudolf Kaaks, Mazda Jenab, Jin Young Park, Raul Murillo, Antonia Trichopoulou, Pagona Lagiou, Christina Bamia, Kathryn E. Bradbury, Elio Riboli, Dagfinn Aune, Konstantinos K. TsilidisGabriel Capella, Antonio Agudo, Vittorio Krogh, Domenico Palli, Salvatore Panico, Elisabete Weiderpass, Anne Tjonneland, Anja Olsen, Begona Martinez, Daniel Redondo-Sanchez, Maria Dolores Chirlaque Lopez, Petra Hm Peeters, Sara Regner, Bjorn Lindkvist, Alessio Naccarati, Eva Ardanaz, Nerea Larranaga, Marie Christine Boutron-Ruault, Vinciane Rebours, Amelie Barre, H B as Bueno-de-Mesquita, Weimin Ye

Research output: Contribution to journalArticlepeer-review

Abstract

The association between H. pylori infection and pancreatic cancer risk remains controversial. We conducted a nested case-control study with 448 pancreatic cancer cases and their individually matched control subjects, based on the European Prospective Investigation into Cancer and Nutrition (EPIC) cohort, to determine whether there was an altered pancreatic cancer risk associated with H. pylori infection and chronic corpus atrophic gastritis. Conditional logistic regression models were applied to calculate odds ratios (ORs) and corresponding 95% confidence intervals (CIs), adjusted for matching factors and other potential confounders. Our results showed that pancreatic cancer risk was neither associated with H. pylori seropositivity (OR = 0.96; 95% CI: 0.70, 1.31) nor CagA seropositivity (OR = 1.07; 95% CI: 0.77, 1.48). We also did not find any excess risk among individuals seropositive for H. pylori but seronegative for CagA, compared with the group seronegative for both antibodies (OR = 0.94; 95% CI: 0.63, 1.38). However, we found that chronic corpus atrophic gastritis was non-significantly associated with an increased pancreatic cancer risk (OR = 1.35; 95% CI: 0.77, 2.37), and although based on small numbers, the excess risk was particularly marked among individuals seronegative for both H. pylori and CagA (OR = 5.66; 95% CI: 1.59, 20.19, p value for interaction textless 0.01). Our findings provided evidence supporting the null association between H. pylori infection and pancreatic cancer risk in western European populations. However, the suggested association between chronic corpus atrophic gastritis and pancreatic cancer risk warrants independent verification in future studies, and, if confirmed, further studies on the underlying mechanisms.
Original languageUndefined/Unknown
Pages (from-to)1727-1735
Number of pages9
JournalInternational Journal of Cancer
Volume140
Issue number8
DOIs
Publication statusPublished - Apr 1 2017

Keywords

  • chronic corpus atrophic gastritis, EPIC cohort, H. pylori infection, nested case-control study, pancreatic cancer risk

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