Table 1.

Criteria for macroscopic scoring of colonic damage

Feature	Score
Ulceration
Normal appearance	0
Focal hyperemia, no ulcers	1
Ulceration without hyperemia or bowel wall thickening	2
Ulceration with inflammation at one site	3
Two or more sites with ulceration and inflammation	4
Major sites of damage extending >1 cm along the length of the colon	5
When an area of damage extended >2 cm along length of colon, the score of was increased by 1 for each additional cm of involvement	6–10
	plus
Adhesions
No adhesions	0
Minor adhesions (colon can be easily separated from other tissue)	1
Major adhesions	2
Diarrhea
No	0
Yes	1
Thickness
Maximal bowel wall thickness (x), in mm, was added to above score x	x
	Total score