EGFR and neoplasm: No statistically significant differences were found between EGFR mutated and EGFR wildtype tumors with respect to clinical stage (except for stage III, p = 0.040), T stage (except for T2a, p = 0.001), N stage, M stage (except for M1c, p = 0.011), tumor location, mean tumor size and mean patient age (Table 3).