Table 2.

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

Factors	P‐value	Risk ratio	95% CI
			Lower	Upper
Gender	0.4899	0.801	0.428	1.502
Age	0.0779	0.579	0.316	1.063
Histology	0.7917	1.069	0.653	1.749
Differentiation	0.1082	0.718	0.479	1.076
Stage	<0.0001	1.892	1.392	2.573
SCC‐S2 expression	0.1717	1.636	0.808	3.315

CI, confidence interval; NSCLC, non‐small‐cell lung cancer.