Clinicopathological of recruited patients

VariablesNumber of patientsPercentages (%)
Gender    Male4676.7
    Female1423.3
Age    < 60 years3050.0
    ≥ 60 years3050.0
Tobacco smoking    Yes4270.0
    No1830.0
Histological type    ADK3456.7
    SCC1321.7
    LCLC11.7
    PSC11.7
    NET610.0
    MH35.0
    Unknown23.3
TNM staging    I1626.7
    II1728.3
    III1931.7
    IV610.0
    Unknown23.3

ADK: adenocarcinomas; SCC: squamous cell carcinoma; LCLC: large cell lung carcinoma; PSC: pulmonary sarcomatoid carcinoma; NET: neuroendocrine tumors; MH: mixed histology; TNM: tumor-node-metastasis