Table 2.

 Disease course in 79 patients with inflammatory bowel disease (IBD) (38 with ulcerative colitis (UC) and 41 with Crohn’s disease (CD)) studied for a period of 12 months

	n	Relapses	Person months	Incidence rate	Mean follow up (months)
CD	38	15	380	0.039	10.00
UC	41	19	393	0.048	9.59
Total	79	34	773	0.044	9.78