Nuclear Expression of Snail Is an Independent Negative Prognostic Factor in Human Breast Cancer

Table 6

Effect of Snail on overall survival by ER status.

Effects of Snail expression	Hazard ratio (95% CI)	𝑃 value
Interaction with ER status		0.2391
ER^+	3.334 (2.530–4.394)
ER^−	2.443 (1.575–3.789)