Table 1. Multivariate analysis of death from breast cancer in the METABRIC cohort comprising standard prognostic markers including BAG-1 mRNA levels.

Exploratory variable	Hazard ratio	95% CI of HR	P value
BAG-1 status(positive or negative)	0.81	0.67–0.97	0.022
Tumor size(T1, T2, T3)	1.56	1.33–1.84	< 0.001
Lymph node status(positive or negative)	2.14	1.76–2.60	< 0.001
Tumor grade(1, 2, 3)	1.32	1.11–1.56	0.001
ER status(positive or negative)	0.75	0.61–0.93	0.0076
HER2 status(positive or negative)	1.42	1.17–1.74	< 0.001