Table 1.

 Characteristics of patients with Crohn’s disease (CD) and ulcerative colitis (UC), and non-inflammatory controls (nIBD)

	CD	UC	nIBD
n	100	100	100
Age (y)*	33.9 (27–41)	38.8 (30–48)	60.8 (51–70)
Sex (n (%))
Male	40	55	58
Female	60	45	42
Immunomodulation (n (%))	76	80	0
Indication for surgery (n (%))
Stenosis/fistula/stenosis+fistula	48/30/22
Partial colitis/pancolitis/pancolitis+BWI		22/59/19
Colorectal cancer/FAP/pancreatic tumour/others†			70/14/10/6

*Median (interquartile range).

†Three rectal adenomas, one chronic perithyphilitic process, one chronic pancreatitis, and one Meckel diverticulum.

BWI, backwash ileitis; FAP, familial adenomatosis polyposis coli.