Table 2.

Univariate and multivariate analyses for overall survival.

Clinicopathological characteristics	Univariable analysis P	Multivariable analysis
		Hazard ratio (95% CI)	P
Race	0.810
White
Black
Others
Age	0.001		0.001
<50		0.671 (0.546–0.824)	<0.001
50–69		0.765 (0.641–0.913)	0.003
≥70		Reference
Marriage	<0.001		0.004
Married		0.810 (0.702–0.936)	0.004
Unmarried		Reference
Grade	0.441
I
II
III
T stage	<0.001		<0.001
T1		0.664 (0.513–0.859)	0.002
T2		0.689 (0.581–0.818)	<0.001
T3		0.705 (0.583–0.853)	<0.001
T4		Reference
N stage	0.249
Negative
Positive
Bone metastasis	<0.001		<0.001
Yes		1.432 (1.239–1.655)	<0.001
No		Reference
Brain metastasis	<0.001		<0.001
Yes		1.769 (1.394–2.246)	<0.001
No		Reference
Liver metastasis	<0.001		<0.001
Yes		1.769 (1.518–2.060)	<0.001
No		Reference
Lung metastasis	<0.001		<0.001
Yes		1.313 (1.135–1.519)	<0.001
No		Reference