Table 2.
Characteristics of all participants (n=598). Values are numbers (percentages) unless stated otherwise
| Characteristics | Value |
|---|---|
| Age (years): | |
| Mean (SD) | 48 (16) |
| Range | 18-91 |
| Women | 425 (71.0) |
| Diagnosis of venous thromboembolism* | 73 (12.2) |
| Unexplained sudden onset dyspnoea | 329 (55.0) |
| Pain on inspiration | 465 (77.8) |
| Unexplained cough | 188 (31.4) |
| Signs and symptoms suggestive of deep vein thrombosis | 57 (9.5) |
| Pulmonary embolism most likely diagnosis | 333 (55.7) |
| Heart rate >100 beats/min | 111 (18.6) |
| Immobilisation or surgery | 94 (15.7) |
| Previous deep vein thrombosis or pulmonary embolism | 84 (14.0) |
| Haemoptysis | 21 (3.5) |
| Active (undergoing treatment ≤6 months) malignancy | 26 (4.3) |
| Wells rule: | |
| Score ≥2 | 361 (60.4) |
| Score >4 | 176 (29.4) |
| Positive point of care D-dimer test result | 220 (36.8) |
*Composite reference standard, including three months of follow-up.