Table 1.
Patient characteristics
| All, n = 500 | EMS, n = 309 | Non-EMS, n = 191 | P-value | ||||
|---|---|---|---|---|---|---|---|
| missing (n) | missing (n) | missing (n) | |||||
| Demographics | |||||||
| Age, years | 78 (69–84) | 80 (71–85) | 75 (65–81) | < 0.001 | |||
| Duration of symptoms (days) | 3 (1–7) | 3 (1–7) | 3 (2–10) | 0.002 | |||
| Gender (male), n (%) | 244 (49.1) | 134 (43.6) | 110 (57.9) | 0.002 | |||
| Comorbidities, n (%) | |||||||
| Previous heart failure | 290 (60.9) | 180 (61.6) | 110 (59.8) | 0.685 | |||
| Diabetes | 188 (38.2) | 100 (32.8) | 88 (47.1) | 0.002 | |||
| Hypertension | 348 (71.0) | 225 (73.8) | 123 (66.5) | 0.085 | |||
| Prior atrial fibrillation | 175 (35.7) | 110 (36.3) | 65 (34.8) | 0.729 | |||
| COPD | 128 (27.6) | 82 (28.8) | 46 (25.8) | 0.493 | |||
| Smoker | 79 (17.9) | 61 (12.2) | 49 (18.4) | 43 (13.9) | 30 (17.0) | 15 (7.9) | 0.712 |
| Asthma | 32 (6.8) | 19 (6.5) | 13 (7.3) | 0.725 | |||
| Ischemic heart disease | 197 (41.6) | 120 (41.1) | 77 (42.5) | 0.757 | |||
| Dyslipidaemia | 168 (35.8) | 93 (32.5) | 75 (41.0) | 0.062 | |||
| Chronic kidney disease | 119 (25.2) | 80 (27.4) | 39 (21.7) | 0.164 | |||
| Valvular disease | 86 (18.1) | 57 (19.5) | 29 (15.9) | 0.333 | |||
| Anaemia | 76 (16.3) | 47 (16.4) | 29 (16.2) | 0.947 | |||
| Active cancer | 30 (6.5) | 17 (6.0) | 13 (7.3) | 0.572 | |||
| Prior PE | 21 (4.3) | 19 (6.3) | 2 (1.1) | 0.007 | |||
| Obesity | 117 (24.9) | 75 (25.8) | 42 (23.5) | 0.574 | |||
| Dementia | 67 (14.3) | 54 (18.7) | 13 (7.2) | 0.001 | |||
The values are given either as number (%) or median (interquartile range)
COPD Chronic obstructive pulmonary embolism
PE Pulmonary embolism