Table 3.
Univariate and multivariate analysis results for predictors of all-cause mortality, resuscitated cardiac arrest, new heart failure.
| Univariate predictors | Hazard ratio | 95% CI | p-value |
|---|---|---|---|
| Age (per 1 year increase) | 1.07 | 1.03–1.10 | <0.01 |
| Male gender | 2.02 | 1.00–4.07 | 0.05 |
| LAD as IRA | 2.09 | 1.09–4.00 | 0.03 |
| Ischaemic time (per 1 min delay) | 1.00 | 1.00–1.00 | 0.04 |
| Incomplete ST segment resolution | 2.20 | 0.82–5.91 | 0.12 |
| TIMI Flow Grade <3 | 1.32 | 0.58–3.00 | 0.51 |
| Myocardial Blush Grade <3 | 1.61 | 0.76–3.39 | 0.22 |
| IMR > 40 | 2.07 | 1.09–3.92 | <0.03 |
| CFR ≤ 2.0 | 3.82 | 1.17–12.43 | <0.03 |
| Discharge echocardiography LVEF (per % increase) | 0.91 | 0.89–0.94 | <0.01 |
| NH IMRangio > 43U | 3.43 | 1.67–7.07 | <0.01 |
| Multivariate predictors | |||
| Age (per 1 year increase) | 1.07 | 1.03–1.11 | <0.01 |
| Ischaemic time (per 1 min delay) | 1.00 | 1.00–1.00 | 0.03 |
| Discharge echocardiography LVEF (per % increase) | 0.92 | 0.90–0.95 | <0.01 |
| NH IMRangio > 43U | 2.13 | 1.01–4.48 | <0.05 |
CI, confidence interval; CFR, coronary flow reserve; IMR, index of microvascular resistance; IRA, infarct related artery; LAD, left anterior descending artery; LVEF, left ventricle ejection fraction; NH IMRangio, non-hyperaemic IMRangio; TIMI, Thrombolysis in Myocardial Infarction. Values in bold denote a statistically significant result (p-value <0.05).