Table 3.
Results from a logistic regression model with in-hospital mortality as dependent variable and the guideline-recommended cut-off level of contact-to-balloon time (≤90 min) as independent variable adjusted to the indicated confounders, including the interaction term of out-of-hospital cardiac arrest and cardiogenic shock
| Variable | Odds ratio | 95% CI | P-value |
|---|---|---|---|
| Contact-to-balloon time | 0.574 | 0.469–0.702 | <0.0001 |
| (≤90 min vs. >90 min) | |||
| Age (year) | 1.061 | 1.051–1.071 | <0.0001 |
| Female gender | 1.256 | 1.023–1.542 | 0.0292 |
| Diabetes mellitus | 1.530 | 1.225–1.910 | 0.0002 |
| Hyperlipoproteinaemia | 0.758 | 0.608–0.944 | 0.0132 |
| Family history | 0.574 | 0.405–0.812 | 0.0017 |
| Smoker | 0.785 | 0.623–0.988 | 0.0393 |
| Chronic total occlusion in NIRA | |||
| RCA | 1.877 | 1.314–2.621 | 0.0003 |
| LCX | 1.905 | 1.338–2.803 | 0.0007 |
| LAD | 1.677 | 1.152–2.376 | 0.0050 |
| Recanalization | |||
| Graft vs. LAD | 1.131 | 0.558–2.292 | 0.7323 |
| LMCA vs. LAD | 3.269 | 1.875–5.699 | <0.0001 |
| RCA vs. LAD | 0.767 | 0.620–0.948 | 0.0144 |
| LCX vs. LAD | 0.944 | 0.712–1.251 | 0.6879 |
| TIMI angiographic flow grade after PCI (score ≤ 2 vs. 3) | 3.632 | 2.822–4.675 | <0.0001 |
| OHCA | 9.233 | 6.331–13.466 | <0.0001 |
| Cardiogenic shock | 17.796 | 13.893–22.794 | <0.0001 |
| OHCA*cardiogenic shock | |||
| With OHCA and shock | 3.920 | 2.665–5.766 | <0.0001 |
| Without OHCA and shock | 2.034 | 1.537–2.691 | |
Data are presented as odds ratios and their 95% confidence intervals.
LAD, left anterior descending artery; LCX, left circumflex artery; LMCA, left main coronary artery; NIRA, non-infarct-related artery; RCA, right coronary artery.