Table 1. .
Clinical characteristics of 100 nasopharynx cancer patients who wereincluded in the present study.
| Clinical Parameters | Number of patients | T1 | T2 | T3 | T4 |
| Gender | |||||
| Male | 72 | 18 | 20 | 17 | 17 |
| Female | 28 | 7 | 5 | 8 | 8 |
| Age, year | |||||
| Median (IQR) | 52 (44–61) | 56 (45.5–62.5) | 52 (39.5–63.5) | 54 (40–60) | 51 (47.5–59) |
| T-category | |||||
| T1 | 25 | ||||
| T2 | 25 | ||||
| T3 | 25 | ||||
| T4 | 25 | ||||
| N-category | |||||
| N0 | 14 | 5 | 3 | 1 | 5 |
| N1 | 27 | 6 | 9 | 7 | 5 |
| N2 | 43 | 11 | 7 | 16 | 9 |
| N3 | 16 | 3 | 6 | 1 | 6 |
| TNM-stage | |||||
| Ⅰ | 5 | 5 | - | - | - |
| Ⅱ | 18 | 6 | 3 | - | - |
| Ⅲ | 42 | 11 | 7 | 24 | - |
| ⅣA-B | 35 | 3 | 6 | 1 | 25 |
| Treatment | |||||
| Chemo-IMRT | 71 | 15 | 14 | 21 | 21 |
| IMRT alone | 29 | 10 | 11 | 4 | 4 |
| GTV, cc | |||||
| median (IQR) | 20.5 (13.0–34.2) | 9.8 (8.2–16.9) | 20.7 (14.9–25.3) | 27.8 (14.7–39.8) | 44.1 (22.4–74.5) |
GTV, gross tumour volume; IMRT, Intensity modulated radiotherapy; IQR, Inter-quartile range.