Table 4. Cox Regression Analysis for Disease-free Survival in 68 Patients with Lung Cancer.

Variable	Univariate		Multivariate
	P	HR (95% Cl)	P	HR (95% Cl)
Age	0.132	0.68 (0.43–1.12)	-	-
Histological differentiation	0.228	1.57 (0.78–2.42)	0.353	1.21 (0.97–2.26)
T factor (T1vs T2,3,4)	0.566	1.83 (0.85–2.81)	0.611	0.91 (0.43–1.77)
Regional lymph node (N0,1 vs N2,3)	0.030	1.69 (1.04–2.73)	0.024	1.74 (1.08–2.82)
Pathologic stage (I, II vs III, IV)	0.019	1.99 (1.12–3.59)	0.025	1.93 (1.08–3.30)
VEGF (≤Median vs>Median)	0.052	1.66 (0.94–2.53)	0.073	2.04 (0.86–4.73)
TSP-1(≤Median vs>Median)	0.112	1.62 (0.91–3.76)	0.322	1.29 (0.93–3.27)
NPAA (≤Median vs>Median)	0.013	3.52 (1.40–7.61)	0.008	2.85 (1.27–7.49)

Bold values indicate “significant difference (P<0.05).”

HR, hazard ratio; Cl, confidence interval.