EGFR and neoplasm: No statistical significance was observed for age (p = 1), gender (p = 0.678), smoking history (p = 0.78), histology (p = 0.335), tumor differentiation (p = 0.145), EGFR mutation (p = 0.321), Hounsfield units (HU) (p = 0.852), ROSE slides (p = 0.594), carcinoembryonic antigen (CEA) level (p = 0.695), squamous cell carcinoma antigen level (p = 0.515), or survival (p = 0.309).