Table 8

Multivariate analysis by the Cox proportional hazard regression model in a backward manner in 40 GBM patients with EGFR amplification

VariableHR (95% CI)aP
Age (yrs)
≥55 vs. <55nsb
KPS
40–60 vs. 70–100ns
Surgery
GTR vs. PRns
EGFRwt
Overexpression vs. no overexpressionns
EGFRvIII
Overexpression vs. no overexpression2.71 (1.36–5.39)0.0044
  • a CI, confidence interval.

  • b ns, not significant.