Table 2 Characteristics of 252 patients with locoregional recurrent ESCC at re-RT
Variables | Number | Percent |
|---|---|---|
Age (years) | ||
> 60 | 167 | 66.3 |
≤ 60 | 85 | 33.7 |
Pattern of recurrence | ||
Regional lymph node recurrence only | 108 | 42.9 |
Local failure | 96 | 38.1 |
Both | 48 | 19.0 |
Recurrence-free interval (months) | ||
≤ 12 | 76 | 30.2 |
> 12 | 176 | 69.8 |
Chemotherapy | ||
Yes | 198 | 78.6 |
No | 54 | 21.4 |
Radiation dose (Gy), BED10 | ||
≤ 60 | 133 | 52.8 |
> 60 | 119 | 47.2 |
Daily dose (Gy) | ||
1.15–1.5 bid | 48 | 19.0 |
1.8 | 60 | 23.8 |
2 | 144 | 57.1 |
Radiotherapy technique | ||
3D-CRT | 40 | 15.9 |
IMRT | 212 | 84.1 |