Table 3.

Overall survival from diagnosis by ypTNM stage group

ypStage	ypT	ypN	Patients, n	Median OS, years	3-year OS	5-year OS	p value*
0	Total		56 (16%)	10.0	73%	64%
	T0	N0	49	10.1	82%	70%
		N1	7	2.4	23%	23%	0.005
I	Total		90 (25%)	12.4	86%	74%
	T1	N0	44	12.4	84%	74%
		N1	8	13.1	100%	100%
	T2	N0	38	13.0	86%	68%	0.653
II	Total		109 (31%)	6.3	75%	62%
	T1	N2	2	Undefined	(100%)	(100%)
		N3	2	Undefined	(100%)	(100%)
	T2	N1	20	5.2	78%	59%
		N2	6	Undefined	80%	80%
	T3	N0	44	7.8	82%	81%
		N1	29	3.1	61%	36%
	T4a	N0	6	3.4	82%	27%	0.007
III	Total		61 (17%)	2.8	46%	35%
	T2	N3	1	Undefined	(0%)	(0%)
	T3	N2	20	2.8	43%	39%
		N3	15	2.2	31%	25%
	T4a	N1	5	Undefined	80%	80%
		N2	4	3.2	(71%)	(14%)
		N3	7	1.7	43%	29%
	T4b	N0	6	1.6	40%	40%
		N1	2	2.8	(33%)	(33%)
		N2	0	NA	NA	NA
		N3	1	Undefined	(0%)	(0%)	0.032
IV (M1)	Any T	Any N	18 (5%)	1.2	8%	0%
M0 R1	Any T	Any N	20 (6%)	2.8	50%	22%

Survival percentages enclosed in parentheses indicate the numbers were estimated based on more than five cases. p values <0.05 are in bold font

^*p values shown in the table are for comparison of survival within each ypStage group