The Crohn's Disease Activity Index (CDAI) is a tool used to assess the severity of Crohn's disease. It takes into account various symptoms and factors to calculate a numerical score.
CDAI Classifications:
Remission: CDAI < 150
Mild: 150 ≤ CDAI < 220
Moderate: 220 ≤ CDAI < 450
Severe: CDAI ≥ 450