Final diagnosis and clinical follow-up
| Rule-out n=398 | Observe n=470 | Rule-in n=449 | P value | |
| Myocardial infarction, No. (%) | 1 (0.3) | 83 (17.7) | 402 (89.5) | <0.001 |
| Type I | 1 (0.3) | 14 (3.0) | 220 (49.0) | |
| Type II | 0 (0) | 69 (14.7) | 181 (40.3) | |
| Type III | 0 (0) | 0 (0) | 1 (0.2) | |
| Other cardiovascular disease, No. (%) | 102 (25.6) | 216 (46.0) | 34 (7.5) | <0.001 |
| Unstable angina | 40 (10.1) | 101 (21.5) | 6 (1.3) | |
| Arrhythmia | 51 (12.8) | 59 (12.6) | 10 (2.2) | |
| Valvular heart disease | 2 (0.5) | 8 (1.7) | 5 (1.1) | |
| Heart failure/cardiomyopathy | 7 (1.8) | 41 (8.7) | 12 (2.7) | |
| Pulmonary embolism | 1 (0.3) | 4 (0.9) | 1 (0.2) | |
| Pericarditis/myocarditis | 1 (0.3) | 3 (0.6) | 0 (0) | |
| Aortic dissection | 0 (0) | 0 (0) | 0 (0) | |
| Non-cardiovascular disease, No. (%) | 295 (74.1) | 171 (36.4) | 13 (3.0) | <0.001 |
| Hypertensive emergency | 81 (20.4) | 57 (12.1) | 3 (0.7) | |
| Hypotension/dehydration | 14 (3.5) | 15 (3.2) | 1 (0.2) | |
| Orthopaedic disorder | 119 (29.9) | 44 (9.4) | 2 (0.4) | |
| Pulmonary disorder | 9 (2.3) | 19 (4.0) | 1 (0.2) | |
| Psychiatric disorder | 14 (3.5) | 1 (0.2) | 1 (0.2) | |
| Gastrointestinal disorder/anaemia | 18 (4.5) | 7 (1.5) | 3 (0.7) | |
| Severe infection | 8 (2.0) | 11 (3.0) | 1 (0.2) | |
| Other | 32 (8.0) | 17 (3.6) | 1 (0.2) | |
| 30 days follow-up, No. (%) | ||||
| Death, myocardial infarction or unplanned coronary intervention | 1 (0.3) | 10 (2.1) | 18 (4.0) | 0.001 |
| Death | 1 (0.3) | 7 (1.5) | 18 (4.0) | <0.001 |
| Cardiovascular | 0 (0) | 5 (1.1) | 14 (3.1) | |
| Non-cardiovascular | 1 (0.3) | 2 (0.4) | 4 (0.9) | |
| Myocardial infarction | 0 (0) | 1 (0.2) | 0 (0) | 0.41 |
| Unplanned coronary intervention | 0 (0) | 2 (0.4) | 0 (0) | 0.16 |
Patients stratified according to 1-hour troponin algorithm for patients with suspected NSTEMI.
NSTEMI, non-ST-segment myocardial infarction.