Table 1.
Baseline characteristics of the 272 patients with nasopharyngeal cancer
| Characteristics | n (%) |
|---|---|
| Total | 272 (100) |
| Gender | |
| Male | 258 (94.9) |
| Female | 14 (5.1) |
| Age (years) | |
| < 45 | 140 (51.5) |
| ≥ 45 | 132 (48.5) |
| Overall stage † | |
| I+II | 17 (6.2) |
| III+IVB | 255 (93.8) |
| T category† | |
| T1-2 | 63 (23.2) |
| T3-4 | 209 (76.8) |
| N category† | |
| N0-1 | 81 (46.1) |
| N2-3 | 191 (53.9) |
| Primary treatment | |
| Radiotherapy alone | 71 (29.8) |
| Chemoradiotherapy | 201 (70.2) |
| Vertebral metastasis | |
| Absent | 99 (36.4) |
| Present | 173 (63.6) |
| Number of metastatic sites | |
| 1 | 105 (38.6) |
| 2 | 55 (20.2) |
| ≥ 3 | 112 (41.2) |
| Disease-free interval (months) | |
| < 13 | 115 (42.4) |
| ≥ 13 | 157 (57.6) |
Abbreviations: T = tumor; N = node; †) According to the 7th edition of the AJCC/UICC staging system.