Baseline characteristics by troponin group
| Troponin ratio 0.01 to ≤1 (n=6328) | Troponin ratio >1 to ≤10 (n=4422) | Troponin ratio >10 to ≤100 (n=4057) | Troponin ratio >100 to ≤1000 (n=1403) | Troponin ratio >1000 (n=107) | |
| Age (median, IQR) | 66.1 (56.3–75.2) | 68.7 (57.6–78.1) | 68.4 (57.6–78.3) | 69.2 (57.1–79.1) | 74.1 (59.9–80.2) |
| Males (%) | 64.0 | 63.7 | 67.9 | 68.1 | 68.9 |
| Smoking (%) | 18.2 | 22.4 | 25.0 | 27.9 | 33.0 |
| Prior MI (%) | 44.6 | 33.7 | 29.3 | 29.3 | 24.3 |
| Prior PCI (%) | 37.7 | 21.6 | 17.3 | 13.7 | 13.1 |
| Prior coronary artery bypass surgery (%) | 21.9 | 15.5 | 13.5 | 13.4 | 13.1 |
| Diabetes (%) | 27.2 | 27.9 | 27.9 | 27.9 | 29.0 |
| History of heart failure (%) | 11.1 | 13.9 | 11.9 | 11.9 | 10.5 |
| ST depression (%) | 16.9 | 27.3 | 33.6 | 41.7 | 51.4 |
| Q waves (%) | 15.7 | 14.8 | 15.5 | 19.6 | 16.8 |
| Killip class (%) | |||||
| 1 | 91.2 | 85.3 | 82.8 | 78.0 | 71.7 |
| 2 | 7.3 | 11.1 | 12.6 | 15.0 | 14.2 |
| 3 | 1.4 | 3.3 | 4.3 | 6.0 | 9.4 |
| 4 | 0.1 | 0.3 | 0.4 | 0.9 | 4.7 |
| Median systolic BP (IQR) | 141 (124–160) | 143 (126–164) | 141 (123–160) | 140 (122–160) | 129 (105–148) |
| Median pulse (IQR) | 72 (62–84) | 79 (67–92) | 79 (68–94) | 80 (68–95) | 80 (66–96) |
| In-hospital revascularisation | |||||
| PCI (%) | 26.2 | 33.2 | 35.8 | 40.9 | 41.1 |
| Coronary artery bypass surgery (%) | 4.8 | 6.1 | 6.3 | 5.1 | 4.8 |
BP, blood pressure; MI, myocardial infartion; PCI, percutaneous coronary intervention.