What are HBI parameters?

Harvey-Bradshaw Index (1980): general well-being (0-4), abdominal pain (0-3), number of liquid stools per day, abdominal mass (0-3), complications (1 point each: arthralgia, uveitis, erythema nodosum, aphthous ulcers, pyoderma, anal fissure, fistula, abscess).

How does HBI correlate with CDAI?

HBI correlates well with CDAI: HBI score roughly equals CDAI/36. HBI <= 4 is approximately equal to CDAI < 150 (remission). HBI is preferred in clinical practice for its simplicity - no 7-day diary required.

Is HBI used in clinical trials?

HBI is widely accepted in clinical trials as a primary endpoint and for regulatory approval. It is endorsed by ECCO guidelines for both clinical practice and research settings.

Harvey-Bradshaw Index for Crohn's Disease

Simplified Crohn's activity index: <= 4 = remission, 5-7 = mild, 8-16 = moderate, > 16 = severe. Uses 5 clinical parameters without the 7-day diary requirement.

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