Table 1.

Demographic Characteristics of Patients With Primary Glioblastoma Treated With EGFRvIII Peptide Vaccination and the Matched Cohort

Parameter	EGFRvIII Vaccine Group		Matched Cohort
	No.	%	No.	%
Total No. of Patients	18		17
Age, years
Median	52		59
Range	29-67		37-71*
Sex (male)	13	72	8	47.1
KPS
100	7	39	1	6
90	7	39	9	53
80	4	22	7	41†
EGFRvIII expression	18	100	17	100
Extent of surgical resection, %
Median	100		100
Range	95-100		95-100
Radiation	18	100	17	100
TMZ treatment	17	94	17	100

Abbreviations: EGFRvIII, epidermal growth factor receptor variant III; KPS, Karnofsky performance status; TMZ, temozolomide.

^*P = .055.

^†P = .016.