Table 1.

Definition of terms

Term	Definition
Moderate – severe ulcerative colitis	Mayo score 6–12 (range 0–12)
Partial Mayo score	Mayo score without endoscopic sub-score (range 0–9)
Clinical response	Decrease from baseline of ≥3 points in total Mayo score, and at least 30%, with decrease in rectal bleeding sub-score of ≥1 point (or an absolute sub-score of 0 or 1)
Clinical remission	Total Mayo score of ≤2, with no individual sub-score >1
Mucosal healing	Endoscopy sub-score of 0 or 1
Clinical flare	Increase from baseline in partial Mayo score of ≥2 points with absolute partial Mayo score ≥4, or absolute partial Mayo score ≥7