Table 2

Incidence of ulcerative colitis in Olmsted County by year, extent, and sex^2-150

		1944–53				1954–63				1964–73				1974–83				1984–93				Total
		n	Rate2-151			n	Rate2-151			n	Rate2-151			n	Rate2-151			n	Rate2-151			n	Rate2-151
Men
Pancolitis	4	1.7		7	2.6		16	4.8		21	5.0		28	6.2		76	4.6
Left sided	2	0.9		3	1.5		6	2.0		15	3.8		17	3.4		43	2.6
Proctitis	1	0.5		6	2.3		11	3.6		12	2.8		5	1.0		35	2.1
Women
Pancolitis	3	1.2		6	2.2		15	4.3		13	2.6		17	3.1		54	2.8
Left sided	1	0.5		1	0.5		6	1.5		8	1.9		9	1.7		25	1.4
Proctitis	8	3.2		7	2.7		9	2.4		11	2.5		7	1.2		42	2.2
Totals
Pancolitis	7	1.4		13	2.4		31	4.8		34	3.8		45	4.5		130	3.6
Left sided	3	0.7		4	1.0		12	1.8		23	2.8		26	2.6		68	2.0
Proctitis	9	1.8		13	2.6		20	2.9		23	2.8		12	1.1		77	2.2

↵2-150 Does not include two cases in whom extent was unknown, and one man with pancolitis diagnosed in 1942.
↵2-151 Male and female rates are age adjusted to US white population, 1990; total rates are age and sex adjusted to US white population, 1990.