Clinical Study
Late Toxicities after Conventional Radiotherapy for Nasopharyngeal Carcinoma: Incidence and Risk Factors
Table 1
Patients’ characteristics, tumor staging, and treatment parameters.
| Characteristic | Number | Percentage |
| Age (y) | | | ≤20 | 42 | 17.5% | >20 | 197 | 82.5% |
| Gender | | | Male | 151 | 63% | Female | 88 | 37% |
| T category | | | T1 | 9 | 3.7% | T2a-T2b | 56 | 23.5% | T3 | 84 | 35% | T4 | 90 | 38% |
| N category | | | N0 | 63 | 26% | N1 | 34 | 14% | N2 | 94 | 40% | N3 | 48 | 20% |
| Fractionation | | | Conventional | | | 70 Gy | 97 | 40% | 75 Gy | 60 | 25% | Hyperfractionated | 82 | 35% |
| Chemotherapy | | | Yes | 159 | 67% | No | 80 | 33% |
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