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Table 4 CDAI items and weighting factors

From: Magnetic resonance enterography changes after antibody to tumor necrosis factor (anti-TNF) alpha therapy in Crohn’s disease: correlation with SES-CD and clinical-biological markers

Item (daily sum per week)

Weighting factor

Number of liquid or very soft stools

2

Abdominal pain score in one week (rating, 0–3)

5

General well-being (rating, 1–4)

7

Sum of physical findings per week:

20

 Arthritis/arthralgia

 

 Mucocutaneous lesions  (e.g. erythema nodosum, aphthous ulcers)

 Iritis/uveitis

 Anal disease (fissure, fistula, etc.)

 External fistula (enterocutaneous,  vesicle, vaginal, etc.)

 Fever over 37.8 °C

Antidiarrheal use

30

Abdominal mass (no = 0, equivocal = 2, yes = 5)

10

47 minus hematocrit (males) or 42 minus hematocrit 6 (females)

6

1-x (1-body weight divided by a standard weight)

1