Table 1.
Characteristics of patients with BMs
| Characteristic | Number (%) |
|---|---|
| Age (years) | |
| Median | 53 |
| Range | 29–76 |
| Gender | |
| Male | 37 (75.5) |
| Female | 12 (24.5) |
| Histology | |
| Adenocarcinoma | 42 (85.7) |
| Squamous cell carcinoma | 4 (8.2) |
| Adenosquamous carcinoma | 2 (4.1) |
| Large cell carcinoma | 1 (2.0) |
| RPA | |
| I | 13 (26.5) |
| II | 29 (59.2) |
| III | 7 (14.3) |
| Number of brain metastases | |
| 1 | 36 (73.5) |
| ≥2 | 13 (26.5) |
| Primary tumor | |
| Controlled | 36 (73.5) |
| Uncontrolled | 13 (26.5) |
| Treatment modality | |
| Craniotomy + WBRT | 41 (83.7) |
| Craniotomy only | 8 (16.3) |
Abbreviations: BMs, brain metastases; RPA, recursive partitioning analysis; WBRT, whole-brain radiotherapy.