Clinicopathological Characteristics and Prognosis Analysis of Stage IB Non-small Cell Lung Cancer

Inclusion Criteria: * It was confirmed by histopathology as primary non-small cell lung cancer, and the pathological type was LUSC or LUAD; * According to the 8th edition of TNM clinical staging standards, it is determined as IB stage * No treatment was performed for the primary lesion of lung cancer before surgery; * No history of other malignant tumors before surgery; * Detailed clinical and pathological information, complete survival data, and no missing follow-up data. Exclusion Criteria: * The postoperative histopathological types include non-scale and non adenocarcinoma, such as lung adenosquamous cell carcinoma, large cell lung cancer, or lung sarcomatoid carcinoma; * Multiple lesion staging surgery; * History of merging with other malignant tumors * Having preoperative treatment; * Missing follow-up information.