Table 1. Histological scoring criteria for intestinal inflammation (15,16).

Score	Neutrophil grade	Lesion depth	Crypt destruction	Lesion range
0	0/high magnification	Nil	Nil	0
1	<10/high magnification	Mucosa	Basal 1/3 damage	1–25%
2	10–50/high magnification	Submucosa	Basal 2/3 damage	26–50%
3	>50/high magnification	Muscularis	Only surface epithelium intact	51–75%
4	Visible acute inflammation with ulceration	Serosa	Entire crypt and epithelium lost	76–100%