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CDAI Calculator
Evaluate Crohn's Disease Activity Index (CDAI) for severity and clinical trials
CDAI Score Interpretation:
• Remission: < 150
• Mild-to-Moderate Disease: 150–220
• Moderate-to-Severe Disease: 220–450
• Severe / Fulminant Disease: > 450. Enter patient clinical variables over the past 7 days below.
• Remission: < 150
• Mild-to-Moderate Disease: 150–220
• Moderate-to-Severe Disease: 220–450
• Severe / Fulminant Disease: > 450. Enter patient clinical variables over the past 7 days below.
CDAI 7-Day Clinical Variables Input
Note: Enter actual value; formula uses standard baseline adjustment (Male: 47 - Hct, Female: 42 - Hct).
Formula adds: (1 - [Body Weight / Standard Weight]) * 100. Enter % deviation directly (positive if underweight percentage).
Calculation Results
⚠️ Not medical advice. For clinical gastroenterology and research reference only. CDAI calculations must be interpreted by a qualified gastroenterologist to guide inflammatory bowel disease treatment.