| Etiological risk factors | Number | Percentage |
| Hypertension | 41 | 61.19 |
| Physical inactivity | 24 | 35.82 |
| Diabetes | 9 | 13.43 |
| Lung disease | 5 | 7.46 |
| Hyperthyroidism | 4 | 5.9 |
| Tobacco | 2 | 3 |
| Alcohol consumption | 2 | 3 |