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

CI: Confidence interval; CT: computed tomography; GGN: ground-glass nodule; Sq: squamous cell carcinoma; Ad: adenocarcinoma; p-T: pathological-T; p-N: Pathological-N; Pl: pleural invasion; V: vascular invasion; Ly: lymphatic invasion; CEA; carcinoembryonic antigen.