From: Neuropsychological testing and biomarkers in the management of brain metastases
Class | Patient characteristics | Median survival (months) |
---|---|---|
I | KPS ≥ 70 | 7.1 |
 | Age < 65 years |  |
 | Controlled primary tumor |  |
 | No extracranial metastases |  |
II | KPS ≥ 70 | 4.2 |
 | One of the following: |  |
 |    Age ≥ 65 |  |
 |    Uncontrolled or synchronous primary disease |  |
 |    Extracranial metastases |  |
III | KPS < 70 | 2.3 |