Table 2. Clinical characteristics of the study population.
| Characteristic | n | % |
| Treatment | ||
| Radio and Chemotherapy | 66 | 85.7 |
| Radiotherapy | 10 | 13 |
| Total | 76 | 98.7 |
| Surgical treatment | ||
| Yes | 16 | 20.8 |
| No | 60 | 77.9 |
| Total | 76 | 98.7 |
| Survival | ||
| Alive | 39 | 50.6 |
| Death | 38 | 49.4 |
| Total | 77 | 100 |
| Cause of death | ||
| Metastasis | 26 | 68,4 |
| Relapse | 7 | 18.4 |
| Other cause | 5 | 13.2 |
| Total | 38 | 100 |
| Family history | ||
| Yes | 3 | 3.9 |
| No | 74 | 96.1 |
| Total | 77 | 100 |