Table 1.

Study Cohort Characteristics

Characteristic	Overall	Convexity	Skull base	Posterior fossa	P
	n = 295	n = 130 (44.1%)	n = 113 (38.3%)	n = 52 (17.6%)
Gender	218	89	88	34	.773
(Female)	73.9%	69.0%	79.3%	66.7%
Age	58.63 ± 13.165	58.46 ± 14.177	58.54 ± 12.249	59.91 ± 12.538	.0581
	Range 24–86	Range 24–84	Range 30–86	Range 34–82
Max. diameter (cm)	3.27 ± 1.58	3.63 ± 1.63	2.87 ± 1.52	3.36± 1.51	.045
	Range 0.46–9.2	Range 0.5–9.20	Range 0.46–8.2	Range 0.70–7.60
WHO I	251 (85.1%)	99 (76.2%)	102 (90.3%)	50 (96.2%)	.003
WHO II	43 (14.6%)	30 (23.1%)	11 (9.7%)	2 (3.8%)
WHO III	1 (0.3%)	1 (0.8%)	0 (0.0%)	0 (0.0%)
Simpson grade	3	2	3	2	.004
	Range 1–5	Range 1–5	Range 1–5	Range 1–5
Deficit	85 (28.8%)	38 (29.5%)	32 (28.8%)	15 (29.4%)	.016
Transient	68 (23.5%)	35 (27.3%)	20 (18.0%)	13 (25.5%)
Permanent	17 (5.7%)	3 (2.3%)	12 (10.8%)	2 (3.9%)

Bold numbers highlight significant values.