Table 1.

Clinical profiles of patients in each group

	EGFRvIII		P
	Positive	Negative
Total	13	54
Age	66.5	63.8	0.223
Female sex	4 (30.8%)	28 (51.9%)	0.540
Laterality
Right	8 (61.5%)	27 (50.0%)	0.736
Left	4 (30.8%)	20 (37.0%)	0.302
Bilateral	1 (7.7%)	7 (13.0%)	0.237
Tumor location
Frontal	5 (38.5%)	26 (48.1%)	0.758
Temporal	3 (23.1%)	14 (25.9%)	0.999
Parietal	1 (7.7%)	3 (5.6%)	0.999
Occipital	2 (15.4%)	1 (1.9%)	0.094
Insular	1 (7.6%)	2 (3.7%)	0.482
Corpus callosum	1 (7.6%)	2 (3.7%)	0.482
Multiple	0	6 (11.1%)	0.588
Surgery
GTR	3 (23.1%)	13 (24.0%)	0.999
STR	8 (61.5%)	16 (29.6%)	0.051
PR	2 (15.4%)	25 (46.3%)	0.059
Radiation therapy	13 (100%)	52 (96.3%)	0.999
Temozolomide	12 (92.3%)	51 (94.4%)	0.999
Bevacizumab	5 (%)	7 (13.0%)	0.204
Additional surgery	2 (%)	5 (9.3%)	0.614
MGMT positivity	7 (53.8)	24 (44.4%)	0.556

GTR: gross total resection, PR: partial resection, STR: subtotal resection.