Research Article
A Model for Predicting Clinical Prognosis in Patients with WHO Grade 2 Glioma
Table 1
Baseline characteristics of the study population.
| Variables | Training groups (n = 128) | Validation groups (n = 32) | values |
| Sex | | | 0.380 | Male | 75 | 16 | | Female | 53 | 16 | |
| Age (years) | | | 0.461 | ≥40 | 79 | 22 | | <40 | 49 | 10 | |
| Preoperative KPS | | | 0.361 | ≥80 | 94 | 26 | | <80 | 34 | 6 | |
| First presenting symptom | | | 1.000 | Seizures | 64 | 16 | | Others | 64 | 16 | |
| Extent of resection | | | 0.750 | Gross total | 72 | 19 | | Nontotal resection or biopsy | 56 | 13 | |
| Deep location | | | 0.570 | Yes | 30 | 6 | | No | 98 | 26 | |
| Gross tumor size | | | 0.068 | ≥6 cm | 53 | 19 | | <6 cm | 75 | 13 | |
| Histology | | | 0.102 | Astrocytoma | 52 | 8 | | Oligodendroglioma | 76 | 24 | |
| 1p19q | | | 0.102 | Codeleted | 76 | 24 | | Not codeleted | 52 | 8 | |
| IDH | | | 0.082 | Mutant | 87 | 24 | | Wildtype | 41 | 8 | |
| Chemotherapy | | | 0.153 | Yes | 62 | 11 | | No | 66 | 21 | |
| Radiotherapy | | | 0.717 | Yes | 96 | 23 | | No | 32 | 9 | |
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