Table 4. Multivariate analysis for disease-free survival and overall survival.

Variables	P value	DFSHR (95 % CI)	P value	OSHR (95 % CI)
Lesion (peripheral vs central)	0.427	1.114(0.854 – 1.452)	0.390	1.125(0.861 – 1.470)
Pathological stage (I, II, IIIA)	<0.001	1.794(1.563 –2.059)	<0.001	1.830(1.594– 2.101)
Resection type (pneumonectomy, lobectomy)	0.435	1.147(0.813 – 1.620)	0.592	1.100(0.777– 1.556)
RDW (≥13.0 vs <13.0 %)	0.019	1.317(1.046 – 1.657)	0.009	1.360(1.081– 1.712)
Albumin (>40 vs ≤40 gL-1)	0.913	1.015(0.782 – 1.316)	0.899	0.983(0.757 – 1.277)
D-dimer (>0.1vs ≤0.1 mgL-1)	0.371	1.114(0.880– 1.410)	0.720	1.044(0.824– 1.322)
ALP (≥71vs <71UL-1)	0.747	1.040(0.820– 1.319)	0.857	1.022(0.806 – 1.296)
Fibrinogen (≥3.543vs <3.543gL-1)	0.225	1.164(0.910– 1.490)	0.114	1.217(0.954– 1.554)
COP-MPV (0,1,2)	<0.001	1.719(1.454– 2.033)	<0.001	1.775(1.500 – 2.101)

Abbreviations: DFS, disease-free survival; OS, overall survival; HR, hazard ratio; CI, confidence interval; RDW, red blood cell distribution width; ALP, alkaline phosphatase; COP-MPV, combination of preoperative platelet count and mean platelet volume.

P less than .05 is statistically significant.