Table 2.
Prognostic Factor | Age (Years) | KPS | Extracranial Metastases | Number of BM | Gene Status |
---|---|---|---|---|---|
0 | ≥70 | <70 | Present | >4 | EGFR neg/unk and ALK neg/unk |
0.5 | <70 | 70–80 | - | 1–4 | NA |
1 | - | 90–100 | Absent | NA | EGFR-pos or ALK-pos |
KPS—Karnofsky Performance Status, NA—not applicable, neg/unk—negative or unknown, pos—positive, BM—brain metastases, EGFR—Epidermal Growth Factor Receptor, and ALK—Anaplastic Lymphoma Kinase.