Crohn's Disease Activity Index (CDAI)
Determines the current severity of Crohn's disease.
Signs, symptoms, and history should be based on the past 7 days. Note: for abdominal pain and general well-being ratings, this calculator uses an average rating per day over the past 7 days. For stools, use the total number of soft/liquid stools over the past 7 days.
Advice
The CDAI is the de facto gold standard and is used in studies worldwide.
Management
- Multiple algorithms use the score, though we are not aware of any that are validated based on outcomes.
- Refer to ACG guidelines for management of acute diarrheal infections in adults.
Critical Actions
Requires laboratory values, detailed history-taking and a 7-day patient diary of symptoms.