Table 3 Multivariate analysis of the five-year Cox proportional hazard model of LRRFS; OS; DMFS; and PFS. The matched pair comparison of clinical characteristics between the radiosensitive group (n = 90) and radioresistant group (n = 90)
Items | Radiosensitive group | Radioresistant group | P | |
|---|---|---|---|---|
T Stage | T1(cases) | 14 | 11 | >0.05 |
T2(cases) | 36 | 33 | ||
T3(cases) | 28 | 32 | ||
T4(cases) | 12 | 14 | ||
N Stage | N0(cases) | 26 | 23 | >0.05 |
N1(cases) | 36 | 39 | ||
N2(cases) | 23 | 20 | ||
N3(cases) | 5 | 8 | ||
TNM Stage | I(cases) | 14 | 10 | >0.05 |
II(cases) | 35 | 34 | ||
III(cases) | 29 | 32 | ||
IV(cases) | 12 | 14 | ||
WHO Classification | I (cases) | 12 | 14 | >0.05 |
II(cases) | 24 | 28 | ||
III(cases) | 54 | 48 | ||
Sex | Man(cases) | 49 | 55 | >0.05 |
Female(cases) | 41 | 35 | ||
Age | (\( \overline{x}\pm s \))(cases) | 44.5 ± 14 | 49.0 ± 12 | >0.05 |
Preatment Hemoglobin(g/L) (\( \overline{x}\pm s \)) | 138.5 ± 13.2 | 135.8 ± 15.5 | >0.05 | |
Total irradiation dose of primary nasopharyngeal carcinoma (Gy) (\( \overline{x}\pm s \)) | 72.5 ± 4.2 | 72.6 ± 3.8 | >0.05 | |
Total irradiation dose of positive neck lymph node (Gy) (\( \overline{x}\pm s \)) | 62.2 ± 2.3 | 64.5 ± 4.2 | >0.05 | |
Preventive irradiation dose of negative neck lymph node (Gy) (\( \overline{x}\pm s \)) | 54.2 ± 3.3 | 53.5 ± 4.3 | >0.05 | |