Crohn’s disease in Stockholm County during 1990-2001: An epidemiological update

Table 1 New cases of Crohn’s disease in Stockholm County during 1990–2001 grouped by 2-year intervals, in relation to gender, age and localization of disease at diagnosis

	1990-1991	1992-1993	1994-1995	1996-1997	1998-1999	2000-2001	1990-2001
Total	174	219	234	286	235	241	1389
Gender
Male	74	114	112	143	127	119	689
Female	100	105	122	143	108	122	700
Age at diagnosis
16-30	60	86	89	121	87	88	531
31-45	49	52	62	66	57	56	342
46-60	27	44	40	47	51	61	270
61-75	29	27	33	40	32	26	187
76-90	9	10	10	12	8	10	59
Localization of disease at diagnosis
Oro-jejunal	2	4	5	7	7	5	30
Small bowel	8	14	9	9	5	4	49
Ileocecal	58	55	61	85	61	73	393
Ileocolonic	15	28	38	35	32	41	189
Colorectal	91	118	121	150	130	118	728

Table 2 Diagnostic procedures performed at the time of diagnosis (n = 1 389)

	Main examination, n (%)	Total number, n (%)
Colonoscopy	690 (49.7)	690 (49.7)
Ileocolonoscopy	285 (20.5)	285 (20.5)
Large bowel barium enema	138 (9.9)	250 (18.0)
Enteroclysis	62(4.5)	602 (43.3)
Surgery	82 (5.9)	141 (10.2)
Rigid sigmoidoscopy	20 (1.4)	NA
Sigmoidoscopy	12 (0.9)	46 (3.3)
Miscellaneous	45 (3.2)
Unknown	55 (4.0)

NA, not assessed.