| Medical background | Effective (n = 79) | Percentage |
| High blood pressure | 38 | 48.10 |
| Diabetes | 29 | 36.70 |
| Gastropathy | 24 | 30.37 |
| HIV | 7 | 8.86 |
| Chronic renal failure | 7 | 8.86 |
| Heart failure | 4 | 5.06 |
| Taste | 4 | 5.06 |
| Asthma | 3 | 3.79 |
| Autoimmune disease | 2 | 2.53 |
| Cirrhosis | 1 | 1.26 |
| Prostate adenoma | 2 | 2.53 |
| Stroke | 3 | 3.79 |
| Hyperthyroidism | 1 | 1.26 |
| Operated inguinal hernia | 7 | 8.86 |
| Operated cataract | 11 | 13.92 |
| Operated hemorrhoid | 4 | 5.06 |
| No history | 23 | 29.11 |