🧫 Harvey-Bradshaw Index (Crohn's Disease Activity)
UseEnter general well-being, abdominal pain, liquid stools per day, abdominal mass, and the count of extraintest…
SourceHarvey RF, Bradshaw JM. A simple index of Crohn's-disease activity. Lancet. 1980.
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
A drop of ≥3 points is commonly used to define clinical response in trials and practice (original synthesis · not guideline verbatim).
When to use
Enter general well-being, abdominal pain, liquid stools per day, abdominal mass, and the count of extraintestinal complications; the tool sums them and bands the activity.
How it works
HBI = well-being (0–4) + pain (0–3) + liquid stools/day + abdominal mass (0–3) + complications (1 point each). <5 remission, 5–7 mild, 8–16 moderate, >16 severe.
Key points
- A drop of ≥3 points is commonly used to define clinical response in trials and practice (original synthesis · not guideline verbatim).
- HBI tracks the CDAI closely but is faster because it omits laboratory and weekly-diary components.
- Because it is purely clinical, pair it with endoscopy and biomarkers (CRP, fecal calprotectin) before changing therapy.
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.
| General well-being | Poor (2) |
|---|---|
| Abdominal pain | Mild (1) |
| Liquid stools per day | 3 /day |
| Abdominal mass | Dubious (1) |
| Number of complications (arthralgia/uveitis/erythema nodosum/aphthous ulcers/pyoderma gangrenosum/anal fissure/fistula/abscess, 1 point each) | 0 items |
→HBI7pts
- Activity：Mild activity
| General well-being | Very well (0) |
|---|---|
| Abdominal pain | None (0) |
| Liquid stools per day | 3 /day |
| Abdominal mass | None (0) |
| Number of complications (arthralgia/uveitis/erythema nodosum/aphthous ulcers/pyoderma gangrenosum/anal fissure/fistula/abscess, 1 point each) | 0 items |
→HBI3pts
- Activity：Remission
Verification & sources · governance
FAQ
Frequently asked questions
- What are the limits and cautions when using Harvey-Bradshaw Index (Crohn's Disease Activity)?
- For licensed clinicians and clinical researchers. Interpret results with history, investigations and local protocols; not a diagnosis or prescription, and not a substitute for multidisciplinary decision-making or local guidelines.
- Does Harvey-Bradshaw Index (Crohn's Disease Activity) 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 Harvey-Bradshaw Index (Crohn's Disease Activity) calculated in practice? Can you show a worked example?
- Inputs: General well-being Poor (2), Abdominal pain Mild (1), Liquid stools per day 3 /day, Abdominal mass Dubious (1), Number of complications (arthralgia/uveitis/erythema nodosum/aphthous ulcers/pyoderma gangrenosum/anal fissure/fistula/abscess, 1 point each) 0 items → Result: HBI 7 pts（Activity: Mild activity） Inputs: General well-being Very well (0), Abdominal pain None (0), Liquid stools per day 3 /day, Abdominal mass None (0), Number of complications (arthralgia/uveitis/erythema nodosum/aphthous ulcers/pyoderma gangrenosum/anal fissure/fistula/abscess, 1 point each) 0 items → Result: HBI 3 pts（Activity: Remission）