Table 2 Characteristics of patients with locally recurrent NPC treated with IMRT
Characteristic | No. (%) |
|---|---|
Gender | |
 Male | 133(72.3) |
 Female | 51(27.7) |
Age at the time of re-irradiation (years) | |
 Median (range) | 49(23–86) |
Primary RT technique | |
 2D-CRT | 103 (56) |
 IMRT | 43 (23.4) |
 Unknown | 38 (20.7) |
Primary RT dose (Gy) | |
 Median (range) | 70 (60–78.35) |
Chemotherapy in the first treatment | |
 Yes | 103 (56) |
 No | 44 (23.9) |
 Unknown | 37 (20.1) |
rT classification | |
 rT1–2 | 64 (34.8) |
 rT3–4 | 120 (65.2) |
Presence of synchronous nodal recurrence | |
 No | 153 (83.2) |
 Yes | 31 (16.8) |
Time interval between initial RT and recurrence (months) | |
 Median (range) | 35 (6–388) |
TTR (years) | |
 ≤ 2 | 59 (32.1) |
 > 2 | 125 (67.9) |