Study group and tumor characteristics
| Sample Characteristics | Patients (n = 69) | Healthy Controls (n = 31) |
|---|---|---|
| Sex | ||
| Male | 45 | 18 |
| Female | 24 | 13 |
| Age (yr) | ||
| Mean | 48.74 [SD, 14.32] | 49.68 [SD, 15.54] |
| Range | 19–77 | 22–68 |
| Handednessa | ||
| Right | 61 | 29 |
| Left | 8 | 2 |
| Glioma locationb | ||
| Anterior | 53 | |
| Posterior | 16 | |
| Glioma hemisphere | ||
| Left | 41 | |
| Right | 28 | |
| Glioma grade (WHO classification) | ||
| Grade II | 25 | |
| Grade III | 17 | |
| Grade IV | 27 | |
| Antiepileptics (yes/no) | 55/14 | |
| Steroids (yes/no) | 33/36 |
Note:—WHO indicates World Health Organization.
↵a Handedness was determined by the Edinburgh Handedness Inventory.
↵b “Anterior” tumors are located in the frontal or anterior temporal lobes. “Posterior” tumors are located in the parietal or posterior temporal lobes, as classified by radiology report review.