Table 3.

Multivariate Cox regression analysis of prognostic factors in NSCLC

Variable	P	HR*	95.0% CI for HR
			Lower	Upper
Gender	0.775	1.098	0.579	2.082
Age	0.951	1.019	0.555	1.873
Smoking History	0.273	0.681	0.392	1.159
Histology	0.387	1.499	0.599	3.749
Lymphatic Metastasis	0.388	1.405	0.649	3.042
Metastasis Organ	0.734	0.894	0.469	1.706
SPP1^ Groups	0.049	1.832	1.003	3.345

*HR: hazard ratio; ^SPP1: secreted phosphoprotein-1.