Familial risks for asthma among twins and other siblings based on hospitalizations in Sweden

Educational level and occupation as risk

Educational level and occupation as risk factors for inflammatory bowel diseases: A nationwide study based on hospitalizations in Sweden

✍ Xinjun Li; Jan Sundquist; Kristina Sundquist 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 90 KB 👁 2 views

## Background: The aim of this study was to investigate possible associations between educational level, occupation, and hospitalization for inflammatory bowel disease. ## Methods: A nationwide database was constructed by linking the swedish census to the hospital discharge register in order to o