Table 6

Multivariate analysis by the Cox proportional hazard regression model in a backward manner in 87 GBM patients

VariableHR (95% CI)aP
Age (yrs)
≥55 vs. <552.26 (1.40–3.67)0.0010
KPS
40–60 vs. 70–100nsb
Surgery
GTR vs. PRns
EGFR gene status
Amplification vs. no amplification1.67 (1.03–2.72)0.038
EGFRwt
Overexpression vs. no overexpressionns
EGFRvIII
Overexpression vs. no overexpressionns
  • a CI, confidence interval.

  • b ns, not significant.