Baseline characteristics and outcome by door to angiography time
| Overall | Time (min) | p Value | |||
|---|---|---|---|---|---|
| 0–30 | 31–60 | >60 | |||
| CABG, coronary artery bypass grafting; CI, confidence interval; MI, myocardial infarction; NA, not applicable; OR, odds ratio; PTCA, percutaneous transluminal coronary angioplasty; TIMI, thrombolysis in myocardial infarction. | |||||
| Number of patients | 4815 | 1487 | 1777 | 1551 | |
| Age (years) | 61.4 (12.5) | 61.0 (12.2) | 60.8 (12.4) | 62.3 (12.9) | 0.002 |
| Women | 25.6% | 23.5% | 24.1% | 29.5% | 0.025 |
| Prior PTCA | 8.7% | 8.5% | 9.2% | 8.3% | 0.261 |
| Prior CABG | 2.5% | 2.6% | 1.9% | 3.0% | 0.675 |
| Anterior wall MI | 42.1% | 42.4% | 40.9% | 43.1% | 0.933 |
| Bundle branch block | 1.5% | 0.94% | 1.7% | 1.9% | 0.497 |
| Cardiogenic shock | 14.1% | 16.3% | 12.9% | 13.2% | 0.166 |
| Pre-hospital delay (min) | 180 (158) | 166 (152) | 169 (145) | 204 (173) | <0.0001 |
| Three vessel disease | 24.4% | 23.3% | 21.8% | 28.6% | 0.0001 |
| TIMI 3 flow after primary angioplasty | 87.5% | 89.3% | 89.0% | 84.1% | 0.0005 |
| In-hospital mortality | 9.3% | 9.2% | 8.3% | 10.5% | 0.552 |
| OR | NA | 1 (reference) | 0.89 | 1.16 | NA |
| 95% CI | 0.70 to 1.13 | 0.91 to 1.47 | |||
| p Value | NA | NA | 0.375 | 0.256 | NA |