Table 3.

Crohn’s disease activity index

Variable No.	Variable description	Multiplier
1	Number of liquid or soft stools (each day for 7 d)	× 2
2	Abdominal pain, sum of 7 daily ratings (0 = None, 1 = Mild, 2 = Moderate, 3 = Severe)	× 5
3	General well-being, sum of 7 daily ratings (0 = Generally well, 1 = Slightly under par, 2 = Poor, 3 = Very poor, 4 = Terrible)	× 7
4	Number of listed complications (arthritis or arthralgia, iritis or uveitis, erythema nodosum or pyoderma gangrenosum or aphthous stomatitis, anal fissure or fistula or abscess, other fistula, fever over 37.8 °C	× 20
5	Use of diphenoxylate or loperamide for diarrhea (0 = No, 1 = Yes)	× 30
6	Abdominal mass (0 = No, 2 = Questionable, 5 = Definite)	× 10
7	Hematocrit (males 47-Hct %, females 42-Hct %)	× 6
8	Body weight (1-weight/standard weight) × 100 (add or subtract according to sign)	× 1

Modified from Best et al[29]. Hct: Hematocrit.