Table 4 Multivariate analysis (Cox regression) of several prognostic markers in relation to survival of patients with intestinal-type gastric cancer

	DFS		OS
	p Value	RR* (95% CI)	p Value	RR (95% CI)
Depth of wall invasion
T1+T2 vs T3+T4	0.0001	7.9 (2.2 to 18.5)	NS
Lymph node metastasis	0.0002	11.9 (3.2 to 44.1)	NS
Distant metastasis	NS		NS
Resection margin (R0 vs R1+R2)	0.02	5.5 (1.2 to 23.9)	NS
TROP2 overexpression	0.0006	6.3 (2.2 to 18.5)	NS

DFS, disease-free survival; OS, overall survival; RR, relative risk; NS, not significant.