Table 1.
Characteristics of 1504 patients with nasopharyngeal carcinoma.
| Characteristic | Number of patients* |
|---|---|
| WHO pathologic classification | |
| Type 1 | 17 (1.1) |
| Type 2 | 168 (11.2) |
| Type 3 | 1319 (87.7) |
| T classification | |
| T1 | 278 (18.5) |
| T2 | 220 (14.6) |
| T3 | 587 (39.0) |
| T4 | 419 (27.9) |
| N classification | |
| N0 | 344 (22.9) |
| N1 | 901 (59.9) |
| N2 | 207 (13.8) |
| N3 | 53 (3.4) |
| AJCC 2010 stage | |
| I | 101 (6.7) |
| II | 311 (20.7) |
| III | 638 (42.4) |
| IVa-b | 454 (30.2) |
AJCC: American Joint Committee on Cancer; WHO: World Health Organization.
*Numbers in parentheses are percentages.