EGFR and neoplasm: Patients with advanced age (>40 years old) [OR = 0.34, 95% CI (0.13-0.85), pvalue = 0.021] presented with significantly lower odds ratio for expressing high EGFR levels, while those with poor tumor grade [OR = 26.56, 95% CI (1.48-476.61); pvalue = 0.026] presented with significantly increased odds ratio for expressing high EGFR levels (Table 2).