Table 3. EGFR vIII staining intensity/expression of meningioma samples (grade I and II), n (%).

MG Grades	Total	EGFR VIII Intensity/Expression				p-value
		1+		2+	3+
I	34	0 (0%)	10 (29.4%)		24 (70.6%)	<0.001**
II	22	22 (100%)	0 (0%)		0 (0%)
Total	56	22	10		24

**Highly significant p-value<0.001.