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. Author manuscript; available in PMC: 2022 Oct 2.
Published in final edited form as: J Neurosurg. 2021 Apr 2;135(6):1674–1684. doi: 10.3171/2020.9.JNS202036

TABLE 2.

Biodemographic information about tumor patients

Variable LH Tumors RH Tumors Total
No. of patients 30 30 60
Sex
 Male 16 19 35
 Female 14 11 25
Handedness
 Rt 22 16 38
 Lt 7 11 18
 Ambidextrous 1 3 4
Mean age, yrs 47.67 46.3 47
Tumor location
 Anterior 15 15 30
 Posterior 15 15 30
WHO tumor grade
 I or II 9 11 20
 III or IV 18 13 31
WHO tumor type
 DA&O tumor 25 26 51
 Meningioma 1 0 1
 Metastatic tumor 0 2 2
Seizures
 Yes 18 16 34
 No 12 8 20
Previous surgery
 Yes 15 10 25
 No 12 18 30
Aphasia
 Yes 15 15 30
 No 12 14 26
Type of aphasia
 Mild 8 10 18
 Moderate 6 4 10
 Severe 1 1 2

DA&O = diffuse astrocytic and oligodendroglial; LH = left hemisphere; RH = right hemisphere.