Baseline patient characteristics
| C | NoC | |
|---|---|---|
| C, chemotherapy; NoC, no chemotherapy; PS, performance status. | ||
| Age (years) | ||
| Median | 65.2 | 65.8 |
| <55 | 47 (13%) | 49 (14%) |
| 55–64 | 132 (36%) | 117 (32%) |
| 65–74 | 153 (42%) | 167 (46%) |
| ⩾75 | 32 (9%) | 28 (8%) |
| Sex | ||
| Male | 275 (76%) | 260 (72%) |
| Female | 89 (24%) | 101 (28%) |
| Clinical stage | ||
| I | 6 (2%) | 6 (2%) |
| II | 14 (4%) | 12 (3%) |
| IIIa | 67 (19%) | 87 (24%) |
| IIIb | 135 (38%) | 111 (31%) |
| IV | 136 (38%) | 136 (39%) |
| Uncertain | 6 | 9 |
| Histology | ||
| Squamous | 194 (54%) | 185 (52%) |
| Adenocarcinoma | 80 (22%) | 89 (25%) |
| Other | 84 (23%) | 83 (23%) |
| Unknown | 6 | 4 |
| WHO PS | ||
| 0 | 79 (22%) | 88 (24%) |
| 1 | 205 (56%) | 191 (53%) |
| 2 | 72 (20%) | 75 (21%) |
| 3 | 8 (2%) | 7 (2%) |