Table 1.
Patient and treatment characteristics.
| Characteristic | No. of patients (n = 560) |
% |
|---|---|---|
| Age, years | ||
| ≤70 | 114 | 20.4 |
| >70 | 446 | 79.6 |
| Sex | ||
| Male | 480 | 85.7 |
| Female | 80 | 14.3 |
| ECOG score | ||
| 0–1 | 518 | 92.5 |
| 2 | 42 | 7.5 |
| Pre-existing cardiac disease | ||
| Yes | 129 | 23.0 |
| No | 431 | 77.0 |
| Histology | ||
| Adenocarcinoma | 481 | 85.9 |
| Squamous cell cancer | 78 | 13.9 |
| Other | 1 | 0.2 |
| Stage | ||
| I + II | 205 | 36.6 |
| III + IV | 355 | 63.4 |
| Differentiation | ||
| Well/moderate | 243 | 43.4 |
| Poor | 317 | 56.6 |
| Tumor location | ||
| Upper/middle | 78 | 13.9 |
| Distal | 482 | 86.1 |
| PTV, cm3 | ||
| ≤574 | 233 | 41.6 |
| >574 | 327 | 58.4 |
| Induction chemotherapy | ||
| Yes | 201 | 35.9 |
| No | 359 | 64.1 |
| Surgery | ||
| Yes | 306 | 54.6 |
| No | 254 | 45.4 |
Abbreviations: ECOG, Eastern Cooperative Oncology Group; PTV, planning tumor volume.