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| Characteristic | No. (%) |
|---|---|
| Age, median (range), y | 64 (21-81) |
| Male | 48 (49.5) |
| Female | 49 (50.5) |
| ECOG performance status | |
| 0 | 34 (35.1) |
| 1 | 54 (55.7) |
| 2 | 9 (9.2) |
| Histology | |
| Adenocarcinoma | 51 (52.6) |
| Poorly differentiated adenocarcinoma | 16 (16.5) |
| Undifferentiated carcinoma | 15 (15.5) |
| Squamous cell carcinoma | 9 (9.3) |
| Other | 6 (6.2) |
Abbreviation: ECOG, Eastern Cooperative Oncology Group.
