| Risk factors | Number | Percentage (%) |
| Diabetes | 16 | 32.6 |
| HTA | 9 | 18.4 |
| HIV | 3 | 6.1 |
| Alcoholism | 7 | 14.3 |
| Smoking | 10 | 20.4 |
| No | 4 | 8.2 |
| Total | 49 | 100 |