Procedural characteristics, infarct size and mortality
| System delay in quartiles (min) | Q1: 72.0 (62.0–78.0) | Q2: 92.0 (87.0–97.0) | Q3: 114.0 (108.0–121.0) | Q4: 160.0 (142.0–190.0) | p for trend |
|---|---|---|---|---|---|
| Characteristic | |||||
| Anterior MI | (n=313) | (n=321) | (n=323) | (n=296) | |
| TIMI flow 2/3 pre-PCI | 111/312 (35.6%) | 110/321 (34.3%) | 127/323 (39.3%) | 109/295 (36.9%) | 0.443 |
| TIM flow 2/3 post-PCI | 307/312 (98.4%) | 316/321 (98.4%) | 314/323 (97.5%) | 288/295 (97.6%) | 0.361 |
| Infarct size >75th percentile | 107/306 (35.0%) | 122/313 (39.0%) | 130/317 (41.0%) | 91/288 (31.6%) | 0.562 |
| 30-day mortality | 8/313 (2.6%) | 10/321 (3.1%) | 22/323 (6.8%) | 22/296 (7.4%) | 0.001 |
| Long-term mortality | 40/313 (12.8%) | 44/321 (13.7%) | 78/323 (24.1%) | 67/296 (22.6%) | <0.001 |
| Non-anterior MI | (n=462) | (n=429) | (n=448) | (n=449) | |
| TIMI flow 2/3 pre-PCI | 130/459 (28.3%) | 148/424 (34.9%) | 156/447 (34.9%) | 146/447 (32.7%) | 0.176 |
| TIM flow 2/3 post-PCI | 451/459 (98.3%) | 410/424 (96.5%) | 435/447 (97.3%) | 430/447 (96.2%) | 0.127 |
| Infarct size >75th percentile | 78/451 (17.3%) | 65/420 (15.5%) | 70/438 (16.0%) | 82/441 (18.6%) | 0.590 |
| 30-day mortality | 11/462 (2.4%) | 13/429 (3.0%) | 13/448 (2.9%) | 13/449 (2.9%) | 0.676 |
| Long-term mortality | 61/462 (13.2%) | 64/429 (14.9%) | 69/448 (15.4%) | 73/449 (16.3%) | 0.195 |
MI, myocardial infarction; min, minutes; PCI, percutaneous coronary intervention; TIMI, thrombolysis in myocardial infarction.