Table 1.
Histological classification, age and sex of the analyzed tumor samples.
| Grade tumor groups | N. Of cases | Age (mean yrs) | Sex | |
|---|---|---|---|---|
| M | F | |||
| Grade IV (GBM) | 60 | 41–78 (62.3) | 34 | 26 |
| Training set | 30 | 42–75 (63.3)a | 14 | 16 |
| Testing set | 30 | 41–78 (61.7)a | 20 | 10 |
| Grade III | 15 | 30–74 (50.7) | 10 | 5 |
| Anaplastic ependymomas | 2 | |||
| Anaplastic oligodendrogliomas | 7 | |||
| Anaplastic astrocytomas | 3 | |||
| Anaplastic oligoastrocytomas | 3 | |||
| Grade II gliomas | 15 | 21–74 (42.8) | 11 | 4 |
| Ependymomas | 2 | |||
| Oligodendrogliomas | 7 | |||
| Pleomorphic xanthoastrocytoma | 1 | |||
| Diffuse astrocytoma | 1 | |||
| Neurocytomas | 4 | |||
| Grade I gliomas | 15 | 2–23 (20.8) | 6 | 9 |
| Pilocytic astrocytomas | 4 | |||
| Gangliogliomas | 11 | |||
M, Male; F, Female.
a
No statistically significant differences were observed between training and testing set (p= 0.6013, unpaired t‐test).