Table 3. Univariate analysis of clinicopathological variables for the survival of the patients with lung cancer.

Parameters	95.0% CI for Exp(B)	p value
Country	0.642(0.317-1.298)	0.217
Sex	1.101(0.666-1.820)	0.706
Age	1.044(0.668-1.632)	0.850
Tumor size	0.430(0.266-0.696)	0.001
Lymph node metastasis	0.647(0.382-1.096)	0.105
TNM staging	1.483(0.734-2.996)	0.272
Histological subtyping	1.289(0.831-1.998)	0.257

CI=confidence interval