Table 2.

Univariate and multivariate analysis for overall survival in 158 NSCLC patients treated with platinum-based chemotherapy.

Variables	Univariate analysis	Multivariate Cox analysis
	p value	HR	CI 95%	p value
Age
<60 years	0.958	Reference
≥60years		0.931	0.630-1.377	0.721
Gender
Male	0.994	Reference
Female		0.932	0.533-1.629	0.805
Histology
Adenocarcinoma	0.167	Reference
Squamous cell carcinoma		1.066	0.699-1.624	0.767
Adenosquamous		3.051	0.894-10.411	0.075
Clinical stage
II	0.866	Reference
III		0.805	0.305-2.123	0.661
IV		0.929	0.363-2.377	0.878
Differentiation
Poor	0.856	Reference
Moderate		0.966	0.640-1.456	0.867
Well		1.140	0.565-2.303	0.714
ATP7B expression
ATP7B-positive	0.044	Reference
ATP7B-negative		0.639	0.424-0.962	0.032

HR: hazard ratio; CI: confidence interval.