Table 2 Clinicopathological characteristics of patients with nasopharyngeal carcinoma
| Â | Â | CRT | P value | |
|---|---|---|---|---|
Non-residual(n = 28) | Residual(n = 12) |  | ||
Age (mean ± SD, years) |  | 53.04 ± 12.84 | 46.92 ± 11.20 | 0.160 |
Gender | Male(n = 31) | 21(67.7%) | 10(32.3%) | 0.447 |
|  | Female(n = 9) | 7(77.8%) | 2(22.2%) | |
Diameter(mm) |  | 30.35 ± 10.31 | 33.63 ± 8.28 | 0.337 |
T stage | T1(n = 3) | 3(100%) | 0 | 0.623 |
|  | T2(n = 3) | 2(66.7%) | 1(33.3%) | |
|  | T3(n = 21) | 15(71.4%) | 6(28.6%) | |
|  | T4(n = 13) | 8(61.5%) | 5(38.5%) | |
N stage | N0(n = 5) | 3(60.0%) | 2(40.0%) | 0.764 |
|  | N1(n = 12) | 9(75.0%) | 3(25.0%) | |
|  | N2(n = 13) | 10(76.9%) | 3(23.1%) | |
|  | N3(n = 10) | 6(60.0%) | 4(40.0%) | |
AJCC/UICC stage | II(n = 2) | 2(100%) | 0 | 0.370 |
|  | III(n = 14) | 11(78.6%) | 3(21.4%) | |
|  | IV(n = 24) | 15(62.5%) | 9(37.5%) | |
Histology | DNK(n = 15) | 13(86.7%) | 2(13.3%) | 0.074 |
|  | UNK(n = 25) | 15(60.0%) | 10(40.0%) | |
Invasion of the skull base | Yes (n = 23) | 15(65.2%) | 8(34.8%) | 0.431 |
No (n = 17) | 13(76.5%) | 4(23.5%) | ||