| Risk factor | Percent of patients (%) | Number of patients |
| Hypertension | 50 | 15 |
| Obesity | 46.7 | 14 |
| Diabetes mellitus | 33.3 | 10 |
| Smoking | 23.3 | 7 |
| Cardiac disorders | 16.7 | 5 |
| Hyperlipidaemia | 16.7 | 5 |
| Other | 20 | 6 |