Table 2.

 Frequency of IS900 DNA detection in Crohn’s disease (CD), ulcerative colitis (UC), and non-inflammatory (nIBD) controls

	CD		UC		nIBD
	n	IS900 positive	n	IS900 positive	n	IS900 positive
No of patients	100	52	100	2	100	5
Site of investigated tissues
Small bowel/ileum	64	30	–	–	23	1
Colon	32	20	77	0	50	3
Rectum	4	2	23	2	27	1