. Author manuscript; available in PMC: 2023 Jul 18.

Published in final edited form as: J Neurosurg. 2022 Sep 16;138(5):1302–1312. doi: 10.3171/2022.7.JNS22585

TABLE 1.

Clinical characteristics of patients with WHO grade III meningioma and benign controls

	Patients w/ Grade III Meningioma (n = 51)^*	Benign Controls (n = 51)
Surgeries, n	151	51
Age at op, median (range)	61 (10–87)	60 (29–85)
Male sex, n (%)	25 (49.0)	24 (47.1)
Skull base location, n (%)	9 (17.6)	8 (15.7)
Age of sample in yrs, median (range)^†	8.2 (0.4–24.6)	10.8 (6.3–21.2)
Histology, n (%)
Anaplastic	42 (82.4)	0 (0)
Papillary features	4 (7.8)	0 (0)
Rhabdoid features	5 (9.8)	0 (0)
Meningothelial, fibrous, transitional	0 (0)	50 (98.0)
Angiomatous	0 (0)	1 (2.0)

Data are based on the first (earliest presenting) WHO grade III meningioma.

^†

Sample age was calculated from last follow-up date.