Table 2.

Summary of univariate and multivariate analysis of overall survival in NSCLC.

Parameters	Univariate analysis			Multivariate analysis
	HR	95% CI	P-value	HR	95% CI	P-value
Sex
Male vs. Female	1.314	0.752–1.972	0.453
Age
<60 vs. ≥60	1.118	0.683–1.593	0.166
Primary tumour (T)
T1–T2 vs. T3–T4	1.910	0.962–2.872	0.041
Regional lymph nodes (N)
N0–N1 vs. N2–N3	2.238	1.929–3.682	0.006	2.562	1.992–3.232	0.013
Clinical stage
I–II vs. III–IV	2.109	1.848–3.563	0.031	2.118	1.890–2.441	0.022
SLC39A4 expression
Low vs. High	2.918	2.353–3.482	0.033	3.067	2.190–3.566	0.019