Incidence of ulcerative colitis in Central Greece: A prospective study

Table 1 Age distribution of the study population of Trikala prefecture by sex according to 1991 census.

Age (yr) group	Males	Females	Total
10-19	11036	9938	20974
20-29	7997	7930	15927
30-39	9097	8521	17618
40-49	9141	8375	17516
50-59	9896	10030	19926
60-69	7477	8259	15736
>70	4289	5409	9698
Total	58933	58462	117395

Table 2 Population distribution in Trikala area.

	Males	Females	Total
Urban	20378	20700	41078
Semi-rural	5776	5944	11720
Rural	32779	31818	64597

Table 3 Incidence of UC among residents of the perfecture of Trikala by sex and the year of diagnosis (95%CI shown in brackets). Age-standardized incidence (ASI) and 95%CI were shown for total incidence over five years.

Year	Males		Females		Total
	n	Incidence per 105	n	Incidence per 105	n	Incidence per 105
1990	3	5.1 (1.1-14.9)	3	5.1 (1.1-15.0)		5.1 (1.9-11.1)
1991	5	8.5 (2.8-19.8)	5	8.6 (2.8-20.0)	6	8.5 (4.1-15.7)
1992	8	13.6 (5.9-26.8)	8	13.7 (5.9-27.0)	10	13.6 (7.8-22.1)
1993	4	6.8 (1.9-17.4)	9	15.4 (7.0-29.2)	16	11.1 (5.9-18.9)
1994	11	18.7 (9.3-33.4)	10	17.1 (8.2-31.5)	13	17.9 (11.1-27.3)
Apr-90	31	10.5 (7.2-14.9)	35	12.0 (8.3-16.7)	21	11.2 (8.7-14.3)
ASI	9.3 (4.2-17.1)			11.4 (5.6-19.8)	66	10.2 (5.0-18.6)

Table 4 Average annual incidence (1990-1994) of UC among residents of the prefecture of Trikala by sex and age.

Age (yr)groups	Males		Females		Total
	n	Incidence per 105	n	Incidence per 105	n	Incidence per 105
10-19	6	10.9 (4.0-23.7)	2	4.0 (0.5-14.5)	8	7.6 (3.3-15.0)
20-29	8	20.0 (8.6-39.4)	7	17.7 (7.1-36.4)	15	18.8 (10.5-31.1)
30-39	8	17.6 (7.6-34.7)	12	28.2 (14.6-49.2)	20	22.7 (13.9-35.1)
8	40-49	36.6 (1.4-19.2)	10	23.9 (11.5-43.9)	13	14.8 (7.9-25.4)
50-59	1	2.0 (0.05-11.3)	3	6.0 (1.2-17.5)	4	4.0 (1.1-10.3)
60-69	4	10.7 (2.9-27.4)	0	0	4	5.1 (1.4-13.0)
>70	1	4.7 (0.1-26.0)	1	3.7 (0.09-20.6)	2	4.1 (0.5-14.9)
Total	31		35		66

Table 5 Average incidence (1990-1994) of UC among residents of the prefecture of Trikala by sex and place of residence.

Place of residence	Males		Females		Total
	n	Incidence per 105	n	Incidence per 105	n	Incidence per 105
Urban	7	6.9 (2.8-14.2)	17	16.4 (9.6-26.3)	24	11.7 (7.4-17.4)
Semi-rural	6	20.8 (7.6-45.2)	4	13.5 (3.7-34.5)	10	17.1 (8.2-31.4)
Rural	18	11.0 (6.5-17.4)	14	8.8 (4.8-14.8)	32	9.9 (6.8-14.0)
Total	31		35		66