Table II. Univariate analysis of factors influencing survival of patients after complete resection of primary lung cancer.

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