Differences in risk factors between patterns of recurrence in patients after curative resection for advanced gastric carcinoma

Table 1 Univariate and multivariate analyses of overall survival

Variable	n	Survival rate at 5 years (%)	Univariate P	Multivariate P relative risk (95% confidence interval)
Age (years)			0.104
<70	74	61.7
≥70	58	45.2
Sex			0.165
Male	87	58.8
Female	45	47.0
Lymphadenectomy			0.647
<D2	61	56.2
D2	71	54.8
Histological differentiation			0.002	0.006
G1 or G2	58	70.7		1
G3 or G4	74	41.2		2.15 (1.23 to 3.85)
Depth of tumor invasion			<0.001	0.040
pT2 or pT3	64	77.2		1
pT4	68	35.6		1.85 (1.03 to 3.47)
Number of lymph node metastases			<0.001	<0.001
pN0 or pN1	74	72.8		1
pN2 or pN3	58	36.5		2.71 (1.53 to 4.98)
Lymphatic invasion			0.016
Negative	45	70.7
Positive	87	48.1
Venous invasion			0.026
Negative	84	62.7
Positive	48	39.4

ISSN: 1477-7819