Helicobacter Pylori Infection Does Not Protect Against Eosinophilic Esophagitis: Results From a Large Multicenter Case-Control Study

H. pylori infection was not inversely associated with EoE, neither in children nor in adults. A borderline inverse association was confirmed for atopy and allergic rhinitis, but not asthma of food allergy. Our findings question a true protective role of H. pylori infection against allergic disorders, including EoE.