Table III.

Five-year survival rate and P-value for overall survival.

Clinicopathological factor	n	Five-year survival rate	P-value
Peritoneal dissemination
p0	47	0.893	<0.0001 (p0 vs. 1)
p1	3	0.000
Stage
I/II	41	0.975	<0.0001 (I/II vs. III/IV)
III/IV	9	0.222
Tumor size (mm)
<50	38	0.920	0.0001 (<50 vs. >50)
>50	12	0.583
Venous invasion
v0	43	0.906	0.0011 (v0 vs. 1/2)
v1/2	7	0.429
Lymphatic invasion
ly0/1	43	0.906	0.0017 (ly0/1 vs. 2/3)
ly2/3	7	0.429
Lymph node metastasis
n0/1	45	0.888	0.0056 (n0/1 vs. 2)
n2	5	0.400
Infiltrative growth pattern
IFNα/β	32	0.937	0.0083 (IFNα/β vs. γ)
IFNγ	17	0.647
c-Met expression
(−)	25	0.920	0.0342 [(−) vs. (+)]
(+)	25	0.758
serum HGF (pg/ml)
<400	36	0.887	0.0558 (<400 vs. >400)
>400	14	0.714
Histological type
well/mod	23	0.920	0.1793 (well/mod vs. por/sig)
poor/sig	25	0.756
Depth
m	13	0.917	0.2649 (m vs. sm/mp/ss/se)
sm/mp/ss/se	37	0.811
HGF expression
(−)	14	0.929	0.5385 [(−) vs. (+)]
(+)	36	0.806

HGF, hepatocyte growth factor; m, mucosa; sm, submucosa; mp, muscularis propria; ss, subserosa; s, serosa; INF, infiltrative growth pattern; INFα, expansive type (tumor margin is clear); INFβ, intermediate type; INFγ, invasive type (tumor margin is unclear); well, well-differentiated tubular adenocarcinoma; mod, moderately differentiated tubular adenocarcinoma; poor, poorly differentiated adenocarcinoma; sig, signet-ring cell carcinoma; muc, mucinous adenocarcinoma; pap, papillary adenocarcinoma.