| Characteristics | Inframedian sST2, | Supramedian sST2, | value |
| Demography | Age (years), mean ± SD | 57.3 ± 8.7 | 59.1 ± 8.2 | 0.31 | Male sex, (%) | 38 (79.2) | 38 (80.9) | 0.84 | Body mass index, mean ± SD | 24.3 ± 2.8 | 24.1 ± 3.0 | 0.79 |
| Risk factors | Diabetes mellitus, (%) | 16 (33.3) | 12 (25.5) | 0.41 | Hypertension, (%) | 30 (62.5) | 25 (53.2) | 0.36 | Current smoking, (%) | 24 (50.0) | 26 (55.3) | 0.60 |
| Clinical parameters | Onset (hour), mean ± SD | 8.1 ± 6.9 | 7.4 ± 5.5 | 0.48 | Systolic b.p (mmHg), mean ± SD | 131.7 ± 27.9 | 126.0 ± 24.7 | 0.29 | Diastolic b.p (mmHg), mean ± SD | 80.3 ± 17.3 | 77.4 ± 15.4 | 0.39 | Heart rate (bpm), mean ± SD | 76.8 ± 17.1 | 75.4 ± 19.9 | 0.71 | Killip II-IV, (%) | 3 (6.2) | 5 (10.6) | 0.44 |
| Laboratory examination | Hemoglobin (g/dL), mean ± SD | 13.9 ± 1.8 | 13.6 ± 1.9 | 0.25 | Leucocytes (103/mm3), mean ± SD | 12.9 ± 3.7 | 12.7 ± 2.8 | 0.76 | Platelets (103/mm3), mean ± SD | 293.6 ± 107.8 | 259.3 ± 83.7 | 0.09 | Creatinine (mg/dL), mean ± SD | 1.2 ± 0.3 | 1.3 ± 0.7 | 0.09 | Glucose (mg/dL), mean ± SD | 184.9 ± 92.2 | 177.9 ± 98.4 | 0.72 | Troponin I (ng/dL), mean ± SD | 6.5 ± 10.5 | 9.4 ± 10.5 | 0.03 | Creatine kinase-MB (IU), mean ± SD | 93.2 ± 79.2 | 200.9 ± 204.3 | <0.01 | Total cholesterol (mg/dL), mean ± SD | 189.2 ± 58.8 | 181.9 ± 43.7 | 0.50 | LDL cholesterol (mg/dL), mean ± SD | 123.9 ± 38.1 | 124.7 ± 35.7 | 0.91 | HDL cholesterol (mg/dL), mean ± SD | 43.8 ± 16.6 | 45.3 ± 8.9 | 0.59 | Triglyceride (mg/dL), mean ± SD | 134.7 ± 55.2 | 122.2 ± 75.8 | 0.36 |
| Infarct location | Anterior, (%) | 23 (47.9) | 24 (51.1) | 0.83 | Inferior, (%) | 24 (50.0) | 21 (44.7) | 0.83 |
| Initial treatment | Primary PCI, (%) | 17 (35.4) | 17 (36.2) | 0.94 | Fibrinolysis, (%) | 18 (37.5) | 24 (51.1) | 0.18 | Heparinization, (%) | | | 0.96 | LMWH | 4 (8.3) | 5 (10.6) | | UFH | 37 (77.1) | 36 (76.6) | | Fondaparinux | 4 (8.3) | 4 (8.5) | |
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