Striking elevation in incidence and prevalence of inflammatory bowel disease in a province of western Hungary between 1977-2001

Table 1 Population of Veszprem Province between 1980-1998

Years	Total	Women	Men
1980	386.462	194.855	191.607
1990	379.246	192.867	186.462
1998	376.211	192.296	183.915

Male/female ratio in 1990: 0.966.

Table 2 Proportion of patients according to places of residence (in 1991) (OR: Odds ratio)

	Urban (n)	Rural (n)	Total (n)
Veszprem Province	208.284	173.089	381.373
Ulcerative colitis	339	221	560
	OR: 1.27
	(95% CI: 1.07 - 1.52)
Crohn’s disease	122	90	212
	OR: 1.13
	(95% CI: 0.85 - 1.49)

Table 3 Surgery in IBD

Surgery in UC		Surgery in CD
·Resection: 8		Not operated: 86 (40.6 %)
·Proctocolectomy: 28		Operated: 126 (59.4 %)
	- J Pouch: 25	·1 operation: 63 (29.7 %)
		·2-3 operations: 50 (23.6 %)
		·4-8 operations: 13 (6.1 %)

Table 4 Familial occurrence of IBD

Relationship	UC (n = 560)	CD (n = 212)
First-degree relative with IBD	17	15
Second-degree relative with IBD	2	6
Familial IBD	3.4 %	9.9%

Table 5 Smoking habits in IBD patients at presentation

	UC n (%)	CD n (%)
Non-smoker	315 (67.3%)	87 (43.1%)
Ex-smoker	86 (18.4%)	13 (6.4%)
Smoker	67 (14.3%)	102 (50.5%)
No data	92	10
Odds ratio for smoking	0.25 (95% CI: 0.19 - 0.32)	1.94 (95% CI: 1.46 - 2.59)

(Prevalence of smoking in Hungary in 1991: 40.5%).

Table 6 Colorectal carcinoma in IBD

Carcinomas	Age at diagnosis	Duration of IBD	Location of IBD	Location of tumor
UC (n = 10)	35 yrs	18.4 yrs	Pancolitis: 7	Ascending: 2
	(20-56 yrs)	(9-33 yrs)	Left sided	Transverse: 4
			colitis: 3	Descending: 2
				Rectum: 2
CD (n = 2)	24 and 45 yrs	3 and 6 yrs	Right colon: 2	Transverse: 2