Table 1.

Comparison of median survival for R0 and R1 resections.

Study	Year	Study period	Patients (n)	Median survival R0 (months)	Median survival R1 (months)
Wagner[6]	2004	1993–2001	211	20.1	15.3
Verbeke[7]	2006	1995–2003	54	37	11
Raut[8]	2007	1990–2004	360	27.8	21.5
Westgaard[9]	2008	1998–2004	40	15.6	10.8
Campbel[10]	2009	1997–2007	163	25.4	15.4
Gnerlich[11]	2012	1997–2008	285	21.7	16.4
Konstantinidis[12]	2012	1993–2008	1084	23	14