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Demographic characteristics of all patients (n = 234).
| Variables | n (%) |
|---|---|
| Signs and symptoms | |
| Lower leg swelling | 84 (35.9) |
| Lower leg pain | 77 (32.9) |
| Chest pain | 22 (9.4) |
| Shortness of breath | 36 (15.4) |
| Hemoptysis | 5 (2.1) |
| Headache | 10 (4.3) |
| Blurred vision | 1 (0.4) |
