P252 Assessment of ulcerative colitis using histological indexes

Histological remission is being increasingly acknowledged as a therapeutic endpoint in ulcerative colitis (UC) patients. Our work aimed: i) to evaluate the agreement between three histological classification systems – Geboes score (GS), Nancy index (NI) and Robarts histopathology index (RHI); ii) to relate these scoring systems with the patients’ endoscopic outcomes and inflammation burden; iii) to unveil which (if any) histological features...