Correlation between postoperative chemotherapy regimen and survival in patients with resectable gastric adenocarcinoma accompanied with vascular cancer thrombus

Table 2 Univariate and multivariate analyses of 133 patients with stage I and stage II resectable gastric adenocarcinoma accompanied by vascular cancer thrombus to determine which clinicopathological characteristics are risk factors

Characteristic	N	Univariate analysis		Multivariate analysis
		χ2	P value	HR (95%CI)	P value
Preoperative complications
No	115	27.724	< 0.001	1	0.021
Digestive tract obstruction	4			2.15 (0.50-9.32)	0.304
Alimentary tract hemorrhage	1			2.90 (0.38-22.41)	0.307
Others1	3			7.07 (1.91-26.15)	0.003
Neural invasion
Absence	73	10.014	0.002	1
Presence	50			2.47 (1.16-5.28)	0.02
Ki-67 expression
Low	1	5.58	0.018	1
High	122			0.05 (0.01-0.44)	0.007

¹Others includes perforation, gastric retention and anemia.

HR: Hazard ratio; CI: Confidence interval.