GIGI/Hepatology

Harvey-Bradshaw Index for Crohn's Disease Activity

Simplified Crohn's Disease Activity Index (CDAI) requiring no 7-day diary. 5 clinical variables. Score ≥5 = active disease.

1. General well-being (past day)

2. Abdominal pain (past day)

3. Number of liquid or soft stools per day

4. Abdominal mass

5. Number of complications present (arthralgia, uveitis, erythema nodosum, aphthous ulcers, pyoderma, fistula, new abscess)(Count each complication separately)

Reference: Harvey RF, Bradshaw JM. Lancet 1980

Medical Disclaimer: This calculator is a clinical decision support tool for qualified healthcare professionals. It does not replace clinical judgement. Always interpret results in the full clinical context. Reference: Harvey RF, Bradshaw JM. Lancet 1980.

More GI/Hepatology Calculators

GIChild-Pugh Score

Stratifies severity of liver cirrhosis and estimates 1-year survival using five clinical and laboratory parameters.

GIMELD Score

Predicts 90-day mortality in patients with end-stage liver disease and guides organ allocation priority.

GIRockall Score

Post-endoscopy risk stratification for rebleeding and mortality after acute upper gastrointestinal haemorrhage.

GIGlasgow-Blatchford Score

Pre-endoscopy triage tool for upper GI bleeding to identify patients requiring urgent inpatient intervention.