Keywords Coeliac disease Dermatitis herpetiformis Cancer Death Major adverse cardiovascular events Evidence before this study We searched PubMed from database inception to May 2025 for population-based studies, cohort studies, systematic reviews, and meta-analyses using the terms “coeliac disease” OR “celiac disease” OR “dermatitis herpetiformis” combined with “mortality”, “death”, “cardiovascular disease”, “major adverse cardiovascular events”, “myocardial infarction”, “stroke”, “heart...