Table 2.

Cox-regression multivariate analysis for relapse

Variable	Significance (p-value)	Hazard ratio	95% CI for Exp(B)
			Lower	Upper
Regular follow-up for 5 yr	0.329	0.88	0.68	1.14
Age > 40 yr	< 0.001	0.58	0.48	0.70
Histologic grade I (vs. II/III)	< 0.001	0.44	0.32	0.62
Staging I (vs. II/III)	< 0.001	0.51	0.41	0.63
HR+ and HER2- (vs. the others)	0.156	0.88	0.74	1.05

CI, confidence interval; HR, hormone receptor; HER2, human epidermal growth factor receptor 2.