IL1B and gastritis: IL-1β can adjust the pH level in the stomach, thus affecting the outcome of Hp treatment.5 In order to understand whether the levels of VitD and IL-1β are correlated to the eradication and recurrence in paediatric patients with Hp infection-related gastritis, the levels of 25-(OH)D3 and IL-1β in paediatric patients with Hp infection were detected in this study; and these patients were followed up for one year.