Table 1.

Disease activity index score as the sum of weight loss, stool consistency and occult blood or gross blood in the stool.

Score	Weight loss	Stool consistency	Blood
0	None	Normal	None
1	1–5%	Soft but still formed
2	5–10%	Soft	Positive haemoccult
3	10–15%	Very soft; wet
4	>15%	Watery diarrhea	Blood traces in stool visible