Table IV. Univariate analysis of factors influencing recurrence of all patients after complete resection of primary lung cancer.

CI: Confidence interval; BFS: fiberoptic bronchoscopy with fluoroscopic imaging; Sq: squamous cell carcinoma; Ad:adenocarcinoma; Pl: pleural invasion; V: vascular invasion; Ly:lymphatic invasion; CEA: carcinoembryonic antigen.