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Crohn's Disease Activity Index (CDAI)

Learn about the Crohn's Disease Activity Index (CDAI) and understand how it can be used to measure disease activity in individuals with Crohn's Disease. Download a free PDF to get started.

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By Ericka Pingol on Aug 2, 2025.

Fact Checked by Ericka Pingol.

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Crohn's Disease Activity Index (CDAI) Template

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Commonly asked questions

The CDAI is scored on a scale of 0-600 points. The higher the score, the more severe the patient's symptoms are.

A score of 0-149 points indicates remission, 150-220 indicates mild to moderate activity, 221-450 indicates moderate or severe activity, and over 450 indicates severe activity.

The CDAI measures the severity and extent of symptoms in patients with Crohn's disease. It assesses factors such as abdominal pain, stool frequency, and general well-being to determine the disease activity.

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