Patients with inflammatory bowel disease have increased risk of autoimmune and inflammatory diseases

Table 2 Number of immune mediated diseases

Disease	IBD	Control	CD	Control	UC	Control	Both1	Control
Primary sclerosing cholangitis	257	4	35	1	192	2	30	1
Pyoderma gangrenosum	193	8	60	1	97	7	36	0
Autoimmune hepatitis	124	35	15	11	96	22	13	2
Celiac disease	280	92	133	30	132	58	15	4
Ankylosing spondylitis	431	151	189	32	201	102	41	17
Churg Strauss syndrome	14	5	4	1	8	4	2	0
Primary biliary cholangitis	71	32	11	6	53	25	7	1
Episcleritis	56	33	25	9	23	21	8	3
Iridocyclitis	419	295	148	82	230	188	41	25
Atrophic gastritis	60	47	16	11	42	34	2	2
Psoriasis	378	345	148	99	200	229	30	17
Polyarteritis nodosa	42	38	15	9	24	27	3	2
Rheumatoid arthritis	446	401	119	110	250	311	32	25
Type 1 diabetes	1682	1464	359	431	1002	1180	103	71
Sarcoidosis	141	122	29	38	79	94	14	9
Asthma	1140	981	337	363	568	695	76	82
Giant cell arteritis	193	156	37	46	116	141	3	6
Psoriatic arthritis	316	249	81	93	147	206	21	17
Grave's disease	817	581	141	207	394	561	46	49
Polymyalgia rheumatica	468	320	72	122	242	324	6	22

¹Patients registered with both CD and UC. CD: Crohn’s disease; UC: Ulcerative colitis; IBD: Inflammatory bowel disease.