S100A8 and pachyonychia congenita: Several studies have reported the potential role of H. pylori in pancreatic carcinogenesis, with an increased risk among H. pylori-CagA-positive individuals, with ORs ranging from 1.38 to 1.65, while others failed to detect associations or only detected an association with CagA-negative strains.7,8,16–20 We evaluated associations between the prevalence of 15 H. pylori-specific antigens and PC risk.