Table 1.
Patient and treatment characteristics
| Characteristic | Total number (%) |
|---|---|
| Gender | |
| Male | 314 (58.9) |
| Female | 219 (41.1) |
| Age (mean) | 67.2 y |
| Race | |
| Caucasian | 407 (76.4) |
| African American | 101 (18.9) |
| Asian | 1 (0.2) |
| Other or not identified | 24 (4.5) |
| ECOG performance status | |
| 0–1 | 432 (86.4) |
| 2 | 28 (5.6) |
| 3–4 | 12 (2.4) |
| Unknown | 28 (5.6) |
| Smoking status | |
| Current/former smoker | 508 (95.3) |
| Never smoker | 25 (4.7) |
| Body mass index | |
| <20 | 66 (12.4) |
| 20 to <25 | 157 (29.5) |
| ≥25 | 310 (58.1) |
| AJCC stage | |
| II | 83 (15.5) |
| IIIA | 300 (56.3) |
| IIIB | 150 (28.1) |
| Chemotherapy | |
| Concurrent | 432 (81.1) |
| Sequential | 55 (10.3) |
| None | 46 (8.6) |
| Radiation therapy dose, Gy | |
| <60 | 61 (11.4) |
| 60–70 | 374 (70.2) |
| >70 | 71 (13.3) |
| Not reported | 27 (5.1) |
| Radiation therapy | |
| 3D-CRT | 240 (45.0) |
| IMRT | 228 (42.8) |
| Mixed plan | 62 (11.6) |
| Esophagitis grade | |
| 0 | 96 (18.1) |
| 1 | 148 (27.8) |
| 2 | 280 (52.5) |
| 3 | 9 (1.7) |
| 4–5 | 0 (0) |
AJCC, American Joint Committee on Cancer; 3D-CRT, 3-dimensional conformal radiation therapy; ECOG, Eastern Cooperative Oncology Group; IMRT, intensity modulated radiation therapy.