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Importance of various variables in each machine learning model.
| EST | CSF | |||
|---|---|---|---|---|
| Variable (in order of importance) | Feature | Importance | Feature | Importance |
| 1 | Cancer directed surgery | 13.88 | Cancer directed surgery | 11.53 |
| 2 | HPV | 11.11 | Tumor size | 8.80 |
| 3 | Radiation therapy | 9.06 | HPV | 8.74 |
| 4 | T stage | 8.41 | Radiation therapy | 7.82 |
| 5 | M stage | 8.35 | Age | 7.08 |
EST, Extremely randomized survival tree; CSF, Conditional survival forest.
