Table 3. Univariate and multivariate cox regression analysis of variables to predict OS.
| Variables | Univariate analysis | Multivariate analysis | ||||
| B | HR (95% CI) | P value | B | HR (95% CI) | P value | |
| Age, year | 0.046 | 1.047 (1.006-1.090) | 0.023 | - | - | - |
| Hippocampal volume (large ≥ 6.92, small < 6.92) | 1.400 | 4.056 (1.319-12.474) | 0.015 | 1.280 | 3.597 (1.160-11.153) | 0.027 |
| Contrast enhanced volume, cm3 | 0.017 | 1.017 (0.997-1.039) | 0.103 | - | - | - |
| histological grade (III/IV) | 3.051 | 21.131 (2.791-159.982) | 0.003 | 2.985 | 19.796 (2.606-150.376) | 0.004 |
| IDH1 (wild type, mutation) | -1.310 | 0.27 (0.095-0.768) | 0.014 | - | - | - |