EGFR and glioblastoma: The below figure shows that upregulation of the EGFR gene was associated with a poor prognosis in GBM-affected patients: HR = 1, p(HR) = 0.9, n (high) = 81, n (low) = 81 (Figure 9); UALCAN; p = 0.33, high expression (n) = 38, low/medium expression (n) = 114 (Figure 10).