Herpes Zoster Incidence in Inflammatory Bowel Disease Patients: A Population-Based Study.

Background: The aberrant immune response in inflammatory bowel disease (IBD) and immunosuppression may intrinsically predispose patients to infectious complications, such as herpes zoster (HZ). We quantified the incidence of HZ in IBD patients in the province of Quebec, Canada.

Methods: We performed a descriptive study using the provincial "Regie de l'Assurance Maladie du Québec" (RAMQ) health registry from 1996 to 2015.