Caspase-3 and Survivin Expression in Primary Atypical and Malignant Meningiomas

Table 1

Antigenic characteristics of 86 AMM.

Parameter	Patients (𝑛=86)	AM (𝑛=76)	MM (𝑛=10)	𝑃
	Range, 0–39.2	Range, 0–39.2	Range, 4.5–30.8
PI (%)	Mean, 9.4	Mean, 8.0	Mean, 19.5	0.002
	Median, 6.8	Median, 6.0	Median, 21.3
PI (>4%)	58 (67.4)	48 (63.2)	10 (100)	0.019
	Range, 0–29.2	Range, 0–16.8	Range, 0.4–29.2
Caspase 3 (% stained nuclei)	Mean, 9.4	Mean, 1.7	Mean, 4.7	0.004
	Median, 0.8	Median, 0.4	Median, 1.6
	Range, 0–66.7	Range, 0–66.7	Range, 3.3–26.7
Survivin (% stained nuclei)	Mean, 14.0	Mean, 13.7	Mean, 16.2	0.491
	Median, 5.7	Median, 4.0	Median, 20.0