Table 2.

GLUT3 and HIF-1α expression in correlation with the grade of PTBE.

PTBE	n	GLUT3 staining		χ 2	P	HIF-1α staining		χ 2	P
		Positive	Negative			Positive	Negative
0	64	13	51			22	42
I	34	14	20			16	18
II	33	21	12			18	15
III	29	24	5	37.297	<0.001	22	7	14.308	0.003

PTBE: peritumoral brain edema.