Table 4. Univariate and multivariate analysis of clinicopathological variables affecting 5-year DFS.

Variable	Comparison	RR (95% CI)	P-value
Univariate
Age (year)	<55 vs. >=55	1.17 (0.49-2.73)	0.723
Histological grade	III vs. I+II	1.43 (0.26-4.52)	0.842
Clinical stage	III+IV vs. I+II	1.77 (1.29-2.43)	< 0.001
Lymph node status	Pos. vs. Neg.	2.41 (1.32-3.48)	< 0.001
ER status	Neg. vs. Pos.	1.32 (0.64-1.62)	0.419
PR status	Neg. vs. Pos.	1.27 (0.80-4.62)	0.217
HER2 status	Pos. vs. Neg.	1.24 (0.82-3.47)	0.180
GSTP1 Ile105Val	Ile/Val+Val/Val vs. Ile/Ile	0.46 (0.34-0.61)	< 0.001
Multivariate (n = 788)
Clinical stage	III+IV vs. I+II	1.23 (1.19-1.43)	0.002
Lymph node status	Pos. vs. Neg.	1.51 (1.10-3.62)	0.005
GSTP1 Ile105Val	Ile/Val+Val/Val vs. Ile/Ile	0.77 (0.45-0.91)	<0.001