Table 3 Univariate analysis of prognostic factors for overall survival (log-rank test)
Parameter | Median survival in months | p-value |
|---|---|---|
Male gender | 5.5 | |
Female gender | 5.0 | 0.49 |
Adenocarcinoma | 5.6 | |
Non-adenocarcinoma | 4.5 | 0.87 |
Extracranial metastases | 4.4 | |
No extracranial metastases | 7.5 | 0.0001 |
1–4 brain metastases | 6.0 | |
>4 brain metastases | 4.6 | 0.04 |
EGFR or ALK positive | 22.9 | |
Not EGFR or ALK positive | 5.0 | 0.0001 |
Age <70 years | 6.0 | |
Age ≥70 years | 3.0 | 0.006 |
KPS ≤70 | 2.5 | |
KPS 80 | 7.0 | |
KPS 90–100 | 11.0 | 0.0001 |