Table 3.

Results of univariate analysis with regard to OS.

	OS (days)		P*	HR	95% CI
Gender	Male	Female	0.250
	484	407
Smoking history	Smokers	Non-smokers	0.045	1.355	1.029–1.784
	351	496
Age (year)	≥60	<60	0.518
	418	434
PS score	0	1	<0.001	1.98	1.482–2.646
	484	303
Pathology	Adenocarcinoma	Others	0.084
	446	351
Stage	III	IV	0.242
	406	434
Fg	Normal	Elevated	0.015	1.423	1.068–1.895
	461	351
PLT	Normal	Elevated	0.007	1.438	1.04–1.988
	446	334
WBC	Normal	Elevated	0.086
	438	286
Hb	Normal	Anemia	0.046	1.382	1.032–1.868
	446	345
LDH	Normal	Elevated	0.003	1.594	1.182–2.152
	459	334
Albumin	Normal	Hypoproteinemia	0.557
	436	397

WBC – white blood cell; Fg – fibrinogen; Hb – hemoglobin; PLT – platelet; LDH – lactate dehydrogenase.

^*Performed using the univariate Cox proportional hazard regression model.