Table 2.
Univariate regression analysis to assess the predictive ability of baseline characteristics for final infarct size
| Variables | Beta coef | 95% CI | P value |
|---|---|---|---|
| BMI (kg/m2) | − 0.71 | − 1.3, − 0.13 | 0.017 |
| Hypertension | − 8.0 | − 14, − 2.1 | 0.008 |
| Admission heart rate | 0.21 | 0.04, 0.38 | 0.019 |
| Admission systolic blood pressure | − 0.1 | − 0.2, 0.01 | 0.068 |
| Pain to device time | 0.01 | 0.00, 0.01 | 0.21 |
| Baseline ST segment elevation | 1.7 | 0.83, 2.6 | < 0.001 |
| Post-pPCI ST segment elevation | 3.7 | 1.7, 5.7 | < 0.001 |
| Anterior myocardial infarction | 9.0 | 3.9, 14 | < 0.001 |
| Inferior myocardial infarction | − 8.7 | − 14, − 3.5 | 0.001 |
| Multi-vessel CAD | 5.0 | 2.1, 7.9 | 0.001 |
| Highest peri-procedural troponin | 0.53 | 0.14, 0.93 | 0.008 |
| Use of glycoprotein IIb/IIIa inhibitors | 8.4 | 3.3, 14 | 0.002 |
| Use of thrombectomy | 6.8 | 1.6, 12 | 0.011 |
| Baseline TIMI flow grade | − 4.4 | − 6.9, − 1.9 | < 0.001 |
| Final TIMI flow grade | − 7.7 | − 17, 1.8 | 0.11 |
| Final TIMI MBG | − 4.5 | − 7.3, − 1.6 | 0.002 |
BMI body mass index, CAD coronary artery disease, CI confidence interval, coef coefficient, MBG myocardial blush grade, pPCI primary percutaneous coronary intervention, TIMI thrombolysis in myocardial infarction grade