Changes in inflammatory bowel disease subtype during follow-up and over time in 44,302 patients.
Åsa H EverhovMichael C SachsPetter MalmborgCaroline NordenvallPär MyrelidHamed KhaliliMaria ElmbergAnders EkbomJohan AsklingGustav JakobssonJonas HalfvarsonJonas F LudvigssonOla OlénPublished in: Scandinavian journal of gastroenterology (2019)
IBD subtype changed in 18% during follow-up. The proportion with CD increased and UC decreased from definition at start to end of follow-up. IBD-U was more common in children.