Table 2.

Cox regression analyses of overall survival (OS) and progession-free survival (PFS) in NSCLC patients

Parameters	OS			PFS
	Univariate analysis	Multivariate analysis		Univariate analysis	Multivariate analysis
	P-value	HR (95% CI)	P-value	P-value	HR (95% CI)	P-value
Age	0.011	2.133 (1.250–3.639)	0.005	0.528	0.948 (0.609–1.478)	0.815
Gender	0.797	0.877 (0.439–1.749)	0.709	0.124	0.676 (0.355–1.287)	0.233
Smoking status	0.640	1.239 (0.638–2.405)	0.527	0.096	1.291 (0.677–2.465)	0.438
Pathological type	0.033	0.977 (0.529–1.802)	0.940	0.001	1.322 (0.765–2.283)	0.317
N status	<0.001	1.847 (0.831–4.103)	0.132	<0.001	1.380 (0.735–2.591)	0.316
TNM	<0.001	1.809 (0.479–6.832)	0.392	<0.001	2.481 (0.807–7.627)	0.069
Pep A	0.379	1.600 (0.829–3.088)	0.162	0.289	1.137 (0.666–1.941)	0.638
Pep B	0.004	0.435 (0.236–0.802)	0.008	0.006	0.533 (0.322–0.950)	0.032
Pep C	0.065	0.616 (0.313–1.212)	0.161	0.141	1.131 (0.612–2.090)	0.695
Pep D	0.07	0.989 (0.474–2.065)	0.977	0.118	0.831 (0.425–1.626)	0.589

Abbreviations: HR, hazard ratio; NSCLC, non-small cell lung cancer; TNM, tumor-node-metastasis.