TABLE 1.

Criteria for scoring the disease activity index^a

Score	Criterion
	Weight loss (% of initial wt)	Stool consistency	Rectal bleeding
0	<1	Normally formed pellets	None
1	1-4.99	Soft pellets not adhering to the anus	Small spots of blood in stool; dry anal region
2	5-10	Very soft pellets adhering to the anus	Large spots of blood in stool; blood appears through anal orifice
3	>10	Liquid stool on long streams; wet anus	Deep red stool; blood spreads largely around the anus

^aCriteria have been modified from the work of Soriano et al. (53).