Tumor Size Is a Critical Factor in Adjuvant Chemotherapy for T_3-4aN0M0 Gastric Cancer Patients after D2 Gastrectomy

Table 2

Univariate analysis of the overall survival in this group of gastric cancer patients.

Variables	n	Mean survival (months)	value
Postoperative chemotherapy			0.543
With	180	58.01
Without	89	56.08
Tumor size			<0.001
<5 cm	148	63.25
≥5 cm	121	47.95
Tumor location			0.025
Upper	130	60.01
Middle	35	46.20
Lower	87	58.40
Total	17	48.17
Serum CEA level (ng/ml)			0.529
Normal	228	57.36
Elevated	38	56.55
Borrmann type			0.119
I	4	68.00
II	119	59.58
III	142	54.85
IV	4	26.75
Histological grade			0.300
High differentiation	1	72.00
Median differentiation	83	61.71
Low differentiation	144	61.05
Poor differentiation	41	46.85
T staging			<0.001
T3	227	59.61
T4a	42	45.89
LN harvested			0.160
15–29	227	58.31
≥30	42	51.26