Table 2.

Univariate and multivariable analysis of baseline clinicopathologic factors for overall survival.

	Univariate analysis		Multivariable analysis
Factors	Hazard ratio (95% C.I)	P-value	Hazard ratio (95% C.I)	P-value
Age		<0.001		0.015
≤60	1 (reference)		1 (reference)
>60	1.64 (1.29–2.08)		1.38 (1.07–1.78)
T size		<0.001		<0.001
≤2 cm	1 (reference)		1 (reference)
>2 cm	2.38 (1.81–3.13)		1.89 (1.41–2.53)
Nodes		<0.001		<0.001
Negative	1 (reference)		1 (reference)
Positive	1.95 (1.39–2.29)		1.85 (1.37–2.50)
Grade		<0.001		0.002
I/II	1 (reference)		1 (reference)
III	1.78 (1.39–2.29)		1.54 (1.18–2.02)
Hormone receptor		0.022		0.022
Positive	1 (reference)		1 (reference)
Negative	1.35 (1.04–1.74)		1.39 (1.05–1.84)
CTC		<0.001		<0.001
Positive	1.74 (1.38–2.20)		1.72 (1.34–2.21)
Negative	1 (reference)		1 (reference)

CI confidence interval, CTC circulating tumour cell.