🩺 Mayo Score / DAI (Ulcerative Colitis)
UseWhen to use: UC trials/clinic follow-up when stool, bleeding, PGA, and endoscopy are available.
StrataHigher totals reflect greater activity. Align with endoscopic Mayo and biomarkers.
LimitsWhen not to use: Crohn’s disease as a UC-specific index. · Pitfall: calling remission with any subscore >1. · Endoscopy required for full Mayo.
SourceSchroeder KW, et al. N Engl J Med 1987 (Mayo score)
This-shift next steps
After scoring: open the scene pack, peer scores, and the matching pathway. Local reference — no HIS write.
Paste the link in Slack, Teams, X, or LinkedIn — the preview image comes from this page’s Open Graph card.
Methodology · worked example, guidelines & full notes
0–12 full Mayo.
When to use
When to use: UC trials/clinic follow-up when stool, bleeding, PGA, and endoscopy are available.
How it works
Stool frequency (0–3) + rectal bleeding (0–3) + physician global (0–3) + endoscopy (0–3).
Key points
- 0–12 full Mayo.
- Remission ≤2, no subscore >1.
- Next: partial Mayo / calprotectin.
References
Worked calculation
The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.
| Stool frequency | 1–2 stools/day more than normal (1) |
|---|---|
| Rectal bleeding | Streaks less than half the time (1) |
| Physician global assessment | Mild disease (1) |
| Endoscopic findings | Mild (1) |
→Mayo DAI4/12
- Band：Mild activity band
- Partial Mayo (no endo)：3/9
| Stool frequency | Normal for patient (0) |
|---|---|
| Rectal bleeding | None (0) |
| Physician global assessment | Normal (0) |
| Endoscopic findings | Normal / inactive (0) |
→Mayo DAI0/12
- Band：Clinical remission (≤2 and no subscore >1)
- Partial Mayo (no endo)：0/9
Verification & sources · governance
FAQ
Frequently asked questions
- Does Mayo Score / DAI (Ulcerative Colitis) upload patient data? Where is it calculated?
- Calculation runs locally in the browser; inputs and results are not uploaded. For licensed clinicians only; interpret with history, investigations and local protocols — not a diagnosis or prescription.
- How is Mayo Score / DAI (Ulcerative Colitis) calculated in practice? Can you show a worked example?
- Inputs: Stool frequency 1–2 stools/day more than normal (1), Rectal bleeding Streaks less than half the time (1), Physician global assessment Mild disease (1), Endoscopic findings Mild (1) → Result: Mayo DAI 4 /12（Band: Mild activity band, Partial Mayo (no endo): 3/9） Inputs: Stool frequency Normal for patient (0), Rectal bleeding None (0), Physician global assessment Normal (0), Endoscopic findings Normal / inactive (0) → Result: Mayo DAI 0 /12（Band: Clinical remission (≤2 and no subscore >1), Partial Mayo (no endo): 0/9）