Table 4.

Multivariate analysis.

Variable	OR (95% CI)	P value
Pathological stage	0.104 (0.009–2.127)	0.157
I-II
III-IV
Adjuvant chemotherapy	5.624 (0.779–40.595)	0.087
Yes
No
Morphological score of lung lesion	0.660 (0.249–1.745)	0.402
Size of lung lesion, cm	0.736 (0.357–1.514)	0.404
Mediastinal lymph node metastasis	47.978 (0.950–2422.772)	0.053
Yes
No
CEA concentration, ng/L	1.031 (0.957–1.112)	0.422

OR: odds ratio; CEA: carcinoembryonic antigen; CI: confidence interval.