Table 5. Univariate analyses for all cases, and by intrinsic subtype, for the effect of EpCAM expression on overall survival.

EpCAM expression, all cases	Hazard ratio (95% CI)	P-value
EpCAM-positive	1.402 (1.178–1.668)	0.0001
EpCAM expression, by intrinsic subtype
Luminal A	1.487 (0.817–2.707)	0.1937
Luminal B (HER2−)	1.208 (0.936–1.560)	0.1464
Luminal B (HER2+)	2.400 (1.451–3.971)	0.0006
HER2 type	0.374 (0.217–0.644)	0.0004
Basal-like	1.634 (1.070–2.497)	0.0231

Abbreviations: EpCAM=epithelial cell adhesion molecule; CI=confidence interval; HER2=human epidermal growth factor receptor 2.