Co‐prevalence of chronic rhinosinusitis and inflammatory bowel disease: A large aggregated electronic health record study

Abstract

Key points IBD patients have a 4.04‐fold elevated likelihood of having CRS compared to non‐IBD patients. CRS patients have a 4.23‐fold elevated likelihood of having IBD compared to non‐CRS patients. The risk of CRS development after IBD is five times higher than IBD development after CRS.