Table 1.
Patient and tumour characteristics
| Patient characteristics | Tumour characteristics | ||||
|---|---|---|---|---|---|
| Number of patients | 262 | Histology | No. (%) | T-stage | No. (%) |
| Age at diagnosis (range) | 55 (15-82) years | Non-keratinising undifferentiated | 243 (92.7) | 1 | 90 (34.4) |
| Gender | No. (%) | Non-keratinising differentiated | 10 (3.8) | 2 | 25 (9.5) |
| Male | 196 (74.8) | Keratinising | 2 (0.8) | 3 | 64 (24.4) |
| Female | 66 (25.2) | Others | 7 (2.7) | 4 | 83 (31.7) |
| Ethnicity | No. (%) | AJCC Stage (7thedition) | No. (%) | N-Stage | No. (%) |
| Chinese | 207 (79.0) | I | 23 (8.8) | 0 | 38 (14.5) |
| Malay | 31 (11.8) | II | 47 (18.0) | 1 | 90 (34.4) |
| Indian | 4 (1.5) | III | 80 (30.5) | 2 | 93 (35.5) |
| Others | 20 (7.7) | IV A/B | 112 (42.7) | 3 | 41 (15.6) |