Table 1. Patient Characteristics.
| Characteristics | Value (n = 46)a |
|---|---|
| Age, y | |
| ≤50 | 4 (9) |
| >50 to ≤70 | 22 (48) |
| >70 | 20 (44) |
| Median, y (range) | 65.5 (37.3-84.4) |
| Sex | |
| Male | 35 (76) |
| Female | 11 (24) |
| Karnofsky Performance Status score | |
| ≥80 | 40 (87) |
| ≥60 to <80 | 6 (13) |
| AJCC disease stage | |
| I | 4 (9) |
| II | 6 (13) |
| III | 28 (61) |
| IV | 8 (17) |
| T category | |
| T1 | 0 |
| T2 | 5 (11) |
| T3 | 39 (85) |
| T4 | 1 (2) |
| Tx | 1 (2) |
| N category | |
| N0 | 14 (30) |
| N1 | 18 (39) |
| N2 | 10 (22) |
| N3 | 3 (7) |
| Nx | 1 (2) |
| M category | |
| M0 | 38 (83) |
| M1 | 8 (17) |
| Tumor histologic characteristics | |
| Adenocarcinoma | 22 (48) |
| Squamous cell | 24 (52) |
| Tumor grade | |
| Moderate | 24 (52) |
| Moderate-poor to poor | 22 (48) |
| Tumor length, median (range), cm | 5.0 (1.9-11.2) |
| Chemotherapy | |
| Induction | 17 (37) |
| Concurrent | 46 (100) |
| Radiotherapy modality | |
| IMRT | 39 (85) |
| IMPT | 7 (15) |
| Follow-up time, median (range), mo | 20.0 (3.3-53.0) |
| Surgery after chemoradiotherapy | |
| Yes | 11 (24) |
| No | 35 (76) |
Abbreviations: AJCC, American Joint Committee on Cancer; IMPT, intensity-modulated proton therapy; IMRT, intensity-modulated (photon) radiation therapy.
a
Data are presented as number (percentage) of patients unless otherwise indicated.