Prognostic factors of T4 gastric cancer patients undergoing potentially curative resection

Table 3 Clinicopathological factors and univariate survival analyses

	n	5-yr survival (%)	P
Age (mean: 68.9)
≤ 68	31	45.5	0.415 (NS)
> 68	40	26.2
Gender
Male	53	31.0	0.510 (NS)
Female	18	50.1
Tumor diameter (mm, mean: 84)
≤ 84	39	34.4	0.213 (NS)
> 84	32	33.9
Histological type
Differentiated	31	18.6	0.565 (NS)
Undifferentiaed	40	40.7
Number of lymph node meta
N0 or N1	19	67.4	< 0.05
N2 or N3	52	23.8
MLR (mean: 0.27)
≤ 0.27	46	38.9	0.083 (NS)
> 0.27	25	20.7
Lymphatic invasion
ly0 or ly1	17	49.3	0.453 (NS)
ly2 or ly3	54	29.7
Venous invasion
v0 or v1	53	45.7	< 0.05
v2 or v3	18	9.7
Peritoneal washing cytology
Negative (CY0)	44	47.6	< 0.01
Positive (CY1)	27	15.2

NS: Not significant.