Table 2. Multivariate analysis of prognostic factors identified in our study with PFS and OS as the end point in patients with operable NSCLC.

Prognostic factor	HR	95% CI	P-valuea
PFS
pTNM stage
I+II vs III+IV	0.172	0.035–0.844	0.030
CEC count (per ml)
High vs low	9.958	2.885–34.374	0.001
sCD146 levels (ng ml−1)
High vs low	6.018	1.954–18.537	0.002
Overall survival
pTNM stage
I+II vs III+IV	0.430	0.164–1.126	0.086
CEC count (per ml)
High vs low	8.478	1.846–38.931	0.006
sCD146 levels (ng ml−1)
High vs low	6.138	1.334–28.251	0.020

Abbreviations: CI=confidence interval; HR=hazard ratio.

^aP-value<0.05 statistically significant.