Mayo Score/Disease Activity Index (DAI) for Ulcerative Colitis
Four domains scored 0–3 each (stool frequency, rectal bleeding, mucosal appearance, physician global); sum 0–12.
Calculator
How it works
The Mayo DAI integrates patient-reported and endoscopic findings with physician global assessment for ulcerative colitis activity in research and practice teaching.
Limits
Modified Mayo (without endoscopy) may be used when colonoscopy is unavailable; not designed to predict need for admission or surgery alone.
Educational tool only—not for diagnosis or treatment decisions.