Table 1.

Criteria of clinical index.

Score	Weight loss	Diarrhea	Blood in the stool
0	~ 1%	Hard	Negative
1	2 ~ 5%	Soft	Fecal occult blood
2	6 ~ 10%	Loose	Bloody stool (~ 49%)
3	10 ~ 15%	Muddy	Bloody stool (50% ~)
4	15% ~	Watery	Flesh blood