Table 1.
Clinical and treatment characteristic.
| Prognostic factors | N | % |
|---|---|---|
| No. of patients | 72 | |
| AGE | ||
| > = 62 | 38 | 52.8 |
| <62 | 34 | 47.2 |
| SEX | ||
| Male | 50 | 69.4 |
| Female | 22 | 30.6 |
| LESION LENGTH | ||
| < = 5.5 cm | ||
| >5.5 cm | ||
| PRIMARY SITE | ||
| Cervical | 2 | 2.8 |
| Upper esophagus | 24 | 33.3 |
| Middle esophagus | 35 | 48.6 |
| Lower esophagus | 11 | 15.3 |
| TNM STAGE | ||
| T2 | 13 | 18.1 |
| T3 | 20 | 27.8 |
| T4 | 39 | 54.2 |
| N0 | 11 | 15.3 |
| N1 | 53 | 73.6 |
| N2 | 8 | 11.1 |
| M0 | 72 | 100 |
| Treatment characteristics | ||
| RADIATION DOSE | ||
| 50 Gy at 2 Gy/fx | 1 | 1.4 |
| 54 Gy at 1.8 Gy/fx | 5 | 6.9 |
| 54 Gy at 2 Gy/fx | 2 | 2.8 |
| 56 Gy at 2 Gy/fx | 1 | 1.4 |
| 57.6 Gy at 1.8 Gy/fx | 1 | 1.4 |
| 59.4 Gy at 1.8 Gy/fx | 4 | 5.6 |
| 60 Gy at 2 Gy/fx | 47 | 65.3 |
| 61.2 Gy at 1.8 Gy/fx | 5 | 6.9 |
| 63 Gy at 2 Gy/fx | 6 | 8.3 |
| RADIATION TYPE | ||
| IMRT | 58 | 80.6 |
| 3DCRT | 14 | 19.4 |
3DRT, 3 dimensional conformal radiation therapy; IMRT, intensity modulated radiation therapy; fx, fraction.