Table 3. Distribution of Campylobacter species according to extent and severity of disease.

Subjects	Characteristic		Number	Campylobacter species	Campylobacter concisus
Ulcerative colitis	Montreal extent	Proctitis	8	5 (62.5%)	2 (25%)
		Left sided UC	44	35 (79.6%)	15 (34.1%)
		Pancolitis	17	11 (64.7%)	6 (35.3%)
	Montreal severity	Remission	7	4 (57.1%)	2 (28.6%)
		Mild	16	12 (75%)	6 (37.5%)
		Moderate	32	28 (87.5%)	13 (40.6%)
		Severe	14	7 (50%)	2 (14.3%)
Controls			65	15(23.1%)	7 (10.8%)