Surgical treatment of ulcerative colitis: Ileorectal vs ileal pouch-anal anastomosis

Table 4 Risk of cancer after ileorectal vs ileal pouch-anal anastomosis in ulcerative colitis

	Period	n	Follow-upaverage (yr)	Overall cancer rate (%)	Estimated cumulative risk after 20 years (%)
Ileorectal anastomosis
da Luz Moreira et al[11]	1971-2006	86	9	8	14
Leijonmarck et al[13]	1955-1984	51	13	0	-
Pastore et al[15]	1974-1990	48	6.3	2	14.31
Börjesson et al[16]	1997-2003	32	3.5	0	-
Grundfest et al[17]	1957-1977	89	8	4.8	5 ± 3.5
Elton et al[18]	1990-1999	18	2.6	-	-
Andersson et al[19]	1992-2006	105	5.4	-	2.1
Lepistö et al[22]	1978-2000	20	18	0	-
Oakley et al[23]	1960-1982	288	8.2	3.1	-
Baker et al[26]	1952-1976	374	> 10	5.9	6 ± 2
Ileo-pouch anal anastomosis
Kariv et al[44]	1984-2009	3203	± 12	0.4	4
Branco et al[45]	1978-2008	520	± 15	0.2	-

¹Cumulative risk at 12 years (rather than 20).