Table 1.

Characteristics of the study population, tumor, and stimulation points

Patients (n)	98
Age (years)	40.5 ± 10.8
Male: Female ratio	1.3
Handedness (%)
Right	84
Left	11
Ambidextrous	5
Tumor side (%)
Right	43
Left	57
Tumor location (n)
FTI	27
F	23
T	12
P	9
FI	9
TI	7
R	4
I	3
TO	2
C	2
O	0
Tumor volume (ml) (mean ± SD; [range])	58.0 ± 42.8; [0.8–180]
Stimulation current intensity (mA) (mean ± SD; [range])	2.23 ± 0.524; [1.1–5.0]
Sensori‐motor positive mapping (%)	100
Language positive mapping (%)	42
Stimulation points (n, mean ± SD; [range])	n = 462, 4.7 ± 2.5; [1–11]
Sensori‐motor stimulation points (n, mean ± SD; [range])	n = 383, 3.9 ± 2.2; [1–11]
Language stimulation points (n, mean ± SD; [range])	n = 79, 0.8 ± 1.2; [0–6]

Legend: F = frontal; T = temporal; I = insular; P = parietal; R = rolandic; O = occipital; C = cingular.