Table 2.

Multivariate analysis of prognostic factors associated with overall survival in NSCLC patients with Cox proportional hazards model

Factors	Relative risk	95% CI	P-value
Sex	0.606	0.359–1.023	0.061
Age	0.979	0.660–1.452	0.915
TNM classification	0.809	0.498–1.314	0.391
Smoking	1.735	1.041–2.894	0.035
Chemotherapy regimen	0.862	0.683–1.089	0.213
Histology	0.962	0.615–1.504	0.864
rs11077 genotype	0.457	0.251–0.831	0.010

Abbreviations: CI, confidence interval; NSCLC, non-small-cell lung cancer; TNM, tumor node metastasis.