Crohn's Disease Activity Index (CDAI) Calculator

Back to All Crohn's Disease Scoring Indexes

Number of Liquid or Very Soft Stools
This is the number of times within the past week that you have had bowel movements that were either very soft or liquid.

Total (Past Week)

Average Daily Abdominal Pain Rating (Over Past Week)
This is a rating of your abdominal pain/discomfort levels over the past week.

None

Mild

Moderate

Severe

Average Daily General Well-Being (Over Past Week)
This is a rating of your general well-being levels over the past week.

Well

Slightly Below Par

Poor

Very Poor

Terrible

Symptoms or findings presumed related to Crohn's disease
(Select all corresponding to patient's symptoms)

Arthritis or Arthralgia

Iritis or Uveitis

Erythema Nodosum, Pyoderma Gangrenosum, Apththous Stomatitis

Anal Fissure, Fistula or Perirectal Abscess

Other Bowel-Related Fistula

Febrile (fever) episode over 100 degrees during past week

Taking Lomotil or Opiates for Diarrhea
Answer "Yes" only if you are taking either Lomotil or Opiates for Diarrhea.

Yes

Is a Abdominal Mass Present?

None

Questionable

Present

Hematocrit (Optional)
Normal average: For Male = 47, For Female = 42
Skip this section if typical and current are unknown.

Typical (Baseline)

Current

Your Weight (Optional)
Skip this section unless weight changes related to Crohn's are known.

Standard Weight lbs.

Current Weight lbs.

Source: "Natural Approach to Inflammatory Bowel Disease," American Journal of Natural Medicine, July/Aug 1997, referring to the index developed as a monitoring tool in the National Cooperative Crohn's Disease Study (Best WR, et al., "Development of a Crohn's disease activity index." Gastroenterology 70:439-444, 1976.

DISCLAIMER: This Score Index/Calculator is based on algorithms and diagnostic tests developed by academic researchers and/or practicing physicians and should be used as an informational assessment tool however under no circumstances should replace a formal diagnosis or assessment by your physician. If you need medical advice, please see a physician. If you need assistance immediately or are having an emergency, please call 911 or go to the nearest emergency department immediately.