Table 2. Summary of the findings for several predictors as well as their correlation analysis with citation numbers.
*P-values ≤0.05 are significant.
GBM: glioblastoma multiforme
| Parameter | Variables | Finding (%) | R-value | P-value |
| Randomization | Yes | 59% | 0.1836 | 0.0675 |
| No | 41% | |||
| Number of arms | 1 | 37% | 0.0847 | 0.402 |
| 2 | 47% | |||
| 3 | 7% | |||
| 4 | 9% | |||
| Phase | I | 8% | 0.2031 | 0.0427* |
| I-II | 8% | |||
| II | 36% | |||
| II-III | 2% | |||
| III | 46% | |||
| GBM status | New | 61% | 0.1242 | 0.2183 |
| Recurrent | 39% | |||
| Treatment protocols | Chemotherapy | 73% | 0.1782 | 0.0761 |
| Radiotherapy | 38% | |||
| Surgery and/or local treatment | 13% | |||
| Immunotherapy | 10% | |||
| Journal’s field | General medical | 25% | 0.0989 | 0.3276 |
| Oncological | 67% | |||
| Neurosurgical | 8% |