Gender :

Male :
Female :

Joint Pain / Arthralgia :

Iritis / Uveitis :

Erythema Nodosum / Apthous Ulcers :

Anal Fissures or Abscesses :

Other Fistula :

Fever in Previous Week :

# Loose BMs in Last Week :

Abdominal Pain :

General Well Being :

Use of Lomotil or Opiates for Diarrhea :

Abdominal Mass :

Hematocrit :

Current Weight (KG) :

Height :

The Crohn’s Disease Activity Index (CDAI) is a research tool to determine the current severity of Crohn’s disease.

Formula :

Summation of factors and variables that are positive.

Explanation of Result :

CDAI < 150 is used as a marker of remission of Crohn’s

CDAI > 450 is a marker of severe disease

* Please verify all calculations prior to clinical use.

References

Best WR, Becktel JM, Singleton JW, Kern F Jr. Development of a Crohn’s disease activity index. National Cooperative Crohn’s Disease Study. Gastroenterology. 1976 Mar;70(3):439-44. PMID: 1248701.