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Table 1

Demographic characteristics of patients with glioblastoma multiforme categorized according to EGFR expression of the tumor

VariableEGFR negativeEGFRwt positive onlyEGFRvIII positive
Total of 196, n (%) 91 (46) 44 (23) 61 (31) 
Sex, n (%)*    
    Male 60 (66) 25 (57) 32 (52) 
    Female 31 (34) 19 (43) 29 (48) 
Age, y, median (range)* 58 (17-82) 57 (21-76) 59 (31-82) 
KPS score, median (range)* 90 (50-100) 90 (70-100) 90 (60-100) 
MIB-1, median (range)* 8.5 (5.8-15.5) 8.9 (4.4-30.6) 11.0 (5.6-12.0) 
VariableEGFR negativeEGFRwt positive onlyEGFRvIII positive
Total of 196, n (%) 91 (46) 44 (23) 61 (31) 
Sex, n (%)*    
    Male 60 (66) 25 (57) 32 (52) 
    Female 31 (34) 19 (43) 29 (48) 
Age, y, median (range)* 58 (17-82) 57 (21-76) 59 (31-82) 
KPS score, median (range)* 90 (50-100) 90 (70-100) 90 (60-100) 
MIB-1, median (range)* 8.5 (5.8-15.5) 8.9 (4.4-30.6) 11.0 (5.6-12.0) 

Abbreviations: wt, wild type; vIII, vIII mutant; MIB-1, MIB-1 antigen.

*

There was no statistically significant difference among the three EGFR expression categories.

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