Demographic and clinical characteristics of patients and controls
| Characteristic | Patients with Brain Tumor (n = 66) | Control Subjects (n = 21) |
|---|---|---|
| Age (range) (mean) (yr) | 18–75 (40.8 ± 14.6) | 25–61 (31.8 ± 9.24) |
| Sex (No.) | ||
| Male | 38 | 11 |
| Female | 28 | 10 |
| Tumor size (mean) (mm3) | 8.4 × 102 to 1.6 × 105 (4.3 × 104 ± 3.7 × 104) | – |
| Pathology (No.) | – | |
| Diffuse astrocytoma | 6 | |
| Fibrillary astrocytoma | 1 | |
| Infiltrative astrocytoma | 9 | |
| Anaplastic astrocytoma | 8 | |
| Glioblastoma | 8 | |
| Oligodendroglioma | 26 | |
| Anaplastic oligoastrocytoma | 3 | |
| Myeloid sarcoma | 1 | |
| Metastatic melanoma | 1 | |
| Metastatic adenocarcinoma | 1 | |
| No pathologic report (low-grade tumor by imaging) | 2 | |
| WHO classification (No.) | ||
| Grade I | 0 | |
| Grade II | 33 | |
| Grade III | 20 | |
| Grade IV | 8 | |
| Tumor location (No.) | ||
| Right hemisphere | 18 | |
| Frontal | 12 (3 SMA, 1 PMC) | |
| Parietal | 1 | |
| Temporal | 1 | |
| Insular | 2 | |
| Frontoparietal | 1 | |
| Frontotemporal | 1 | |
| Left hemisphere | 46 | |
| Frontal | 24 (4 SMA, 2 PMC) | |
| Parietal | 3 | |
| Temporal | 11 | |
| Insular | 4 | |
| Frontoparietal | 2 | |
| Frontotemporal | 1 | |
| Parietotemporal | 1 | |
| Bilateral hemisphere | 1 | |
| Multiple lesions | 1 |
Note:—PMC indicates primary motor cortex.