| Sociodemographic and clinical data | n | % |
| Gender |
| |
| Male | 114 | 56.4 |
| Female | 88 | 43.6 |
| Total | 202 | 100 |
| Age groups |
| |
| ≤32 years | 3 | 1.5 |
| 33 - 42 years | 11 | 5.4 |
| 43 - 52 years | 37 | 18.3 |
| 53 - 62 years | 61 | 30.2 |
| 63 - 72 years | 57 | 28.2 |
| 73 - 82 years | 29 | 14.4 |
| ≥83 years | 4 | 2.0 |
| Total | 202 | 100 |
| Clinical information |
| |
| Cough | 54 | 26.7 |
| Several symptoms | 47 | 23.3 |
| Dyspnea | 43 | 21.3 |
| Chest pain | 26 | 12.9 |
| Embolism suspicion | 12 | 5.9 |
| Others | 11 | 5.4 |
| Fever | 9 | 4.5 |
| Total | 202 | 100 |