Table 3.

Multivariate analysis for predictive factors in patients with NSCLC (Cox regression model)

Factor	P-values	RR	95% CI
Gender	0.316	0.624	0.248-1.569
Age	0.345	0.678	0.302-1.520
Histology	0.617	1.241	0.532-2.896
Tumor status	0.299	0.567	0.194-1.653
Nodal status	0.024	2.825	1.144-6.973
PHF20	0.202	0.595	0.268-1.321

CI, confidence interval; NSCLC, non-small-cell lung cancer; RR, risk ratio.