Table 2.

COX regression analysis of prognostic model

	p value	Hazard ratio
Univariate analyses
Risk scores	0.002	3.932 (1.676–9.224)
Tumor size	0.036	2.408 (1.061–5.463)
Age (years)	0.588	0.815 (0.389–1.710)
HER-2	0.633	1.198 (0.571–2.511)
Multivariate analyses
Risk scores	0.002	4.597 (1.782–11.858)
Tumor size	0.032	2.458 (1.084–5.696)
Age (years)	–	–
HER-2	–	–