Table 1.
Patients’ characteristics at baseline.
| Baseline Characteristics | N (%) |
|---|---|
| Patients | 89 |
| Median age (range) | 67 (44–86) |
| Gender | |
| Male | 63 (70.8) |
| Female | 26 (29.2) |
| Histotype | |
| Adenocarcinoma | 63 (70.8) |
| Squamous cell carcinoma | 25 (28.0) |
| Missing | 1 (1.2) |
| ECOG PS | |
| 0 | 31 (34.8) |
| ≥1 | 58 (65.2) |
| Smoking status | |
| Never | 9 (10.1) |
| Former | 46 (51.7) |
| Smoker | 28 (31.5) |
| Missing | 6 (6.7) |
| Number of metastases | |
| 1–2 | 32 (35.9) |
| 3–4 | 40 (44.9) |
| 5–9 | 16 (18.0) |
| Missing | 1 (1.1) |
| Prior lines of treatment | |
| 1 | 40 (44.9) |
| >1 | 45 (50.6) |
| Missing | 4 (4.5) |
ECOG PS: Eastern Cooperative Oncology Group Performance Status.