Table 1. Cardiovascular magnetic resonance characterization of the study sample.
| Variable* | All Patients (N = 136) | Late MO absent (N = 62) | Late MO < median (N = 37) | Late MO ≥ median (N = 37) | p-value |
|---|---|---|---|---|---|
| MR-EF | 49.6 (43.6–56.5) | 54.2 (48.6–59.7) | 47.9 (43.8–52.3) | 41.3 (34.9–51.0) | <0.001 |
| AAR (%LV) | 33.6 (24.9–49.5) | 31.9 (20.3–43.5) | 32.5 (26.2–39.1) | 48.0 (34.3–56.0) | 0.002 |
| IS (%LV) | 19.2 (11.1–25.7) | 12.3 (3.1–20.4) | 19.0 (14.6–22.1) | 30.0 (24.7–41.4) | <0.001 |
| MSI (%AAR) | 43.8 (27.4–62.3) | 58.1 (36.6–87.5) | 47.3 (28.5–56.8) | 30.0 (10.6–39.5) | <0.001 |
*Values are given as number (%) or median (P25–P75). Late MO – late microvascular obstruction; MR-EF – ejection fraction assessed by magnetic resonance; AAR – area at risk; IS – infarct size; MSI – myocardial salvage index; p-value – result of Kruskal-Wallis test comparing three groups of late MO.