Table 1 Baseline characteristics of participants
Characteristic | Recurrent MI | P-value | |
|---|---|---|---|
Yes (n = 103) n (%) or mean ± SD | No (n = 2299) n (%) or mean ± SD | ||
Demographic data | Â | ||
 Age (years) | 58 ± 12 | 59 ± 11 | 0.817 |
 Male | 69 (67.0) | 1642 (71.4) | 0.331 |
 Hospital stay (days) | 6.9 ± 2.9 | 7.2 ± 3.5 | 0.946 |
Medical history | Â | ||
 Diabetes mellitus | 45 (43.7) | 1044 (45.4) | 0.152 |
 Hypertension | 29 (28.2) | 509 (22.1) | 0.731 |
 Previous PCI | 3 (2.9) | 66 (2.9) | 0.980 |
 Atrial fibrillation | 1 (1.0) | 90 (3.9) | 0.126 |
 Peripheral vascular disease | 3 (2.9) | 35 (1.5) | 0.261 |
 Arrhythmia (VT/VF) | 9 (8.7) | 166 (7.2) | 0.562 |
Infarct location by ECG | 0.032 | ||
 Inferior | 38 (36.9) | 1114 (48.5) |  |
 Anterior | 60 (58.3) | 1131 (49.2) |  |
 Lateral | 5 (4.9) | 54 (2.4) |  |
Killip classification | 0.925 | ||
 I | 82 (79.6) | 1796 (78.1) |  |
 II | 14 (13.6) | 312 (13.6) |  |
 III | 3 (2.9) | 66 (2.9) |  |
 IV | 4 (3.9) | 125 (5.4) |  |
Laboratory data | Â | ||
 K+ (mmol/L) | 3.9 ± 0.5 | 3.9 ± 0.5 | 0.181 |
 Na+ (mmol/L) | 138.6 ± 5.8 | 139.2 ± 4.1 | 0.685 |
 Non-HDL (mmol/L) | 3.8 ± 1.2 | 3.5 ± 1.0 | 0.003 |
 HDL (mmol/L) | 1.2 ± 0.3 | 1.1 ± 0.3 | 0.053 |
 LDL (mmol/L) | 3.1 ± 1.0 | 2.8 ± 0.8 | 0.004 |
 TG (mmol/L) | 1.8 ± 1.1 | 1.7 ± 1.2 | 0.309 |
 Glucose (mmol/L) | 7.6 ± 3.2 | 7.4 ± 3.3 | 0.368 |
 ALT (unit/L) | 46.4 ± 33.1 | 58.4 ± 114.4 | 0.171 |
 AST (unit/L) | 162.2 ± 162.9 | 176.4 ± 297.3 | 0.932 |
 Alkaline phosphatase (unit/L) | 71.1 ± 23.1 | 73.6 ± 28.1 | 0.309 |
 ɤ-Glutamyl transpeptidase (unit/L) | 46.8 ± 43.3 | 49.1 ± 73.8 | 0.980 |
 Cardiac troponin I (ng/mL) | 23.4 ± 67.7 | 22.2 ± 62.0 | 0.646 |
 Creatine kinase MB (ng/ml) | 31.7 ± 53.4 | 40.8 ± 77.7 | 0.415 |
 NT-proBNP (pg/mL) | 1595.7 ± 2259.3 | 1889.2 ± 4908.0 | 0.967 |
 Number of stents | 1.2 (0.8) | 1.2 (0.8) | 0.605 |
Method of reperfusion | 0.046 | ||
 Balloon angioplasty | 18 (17.5) | 255 (11.1) |  |
 Drug-eluting stent implantation | 85 (82.5) | 2044 (88.9) |  |
 Thrombus aspiration | 9 (8.7) | 280 (12.2) | 0.294 |
 Temporary pacemaker | 3 (2.9) | 137 (6.0) | 0.197 |
 Late PCI (>12 h after symptom onset) | 65 (63.1) | 1352 (58.8) | 0.386 |
Discharge medications | Â | ||
 Aspirin | 100(97.1) | 2263(98.4) | 0.290 |
 Platelet P2Y12 inhibitor | 69(67.0) | 1502(65.3) | 0.729 |
 Statins | 101(98.1) | 2276(99.0) | 0.357 |
 Beta-blocker | 71(68.9) | 1477(64.3) | 0.331 |
 ACE inhibitor or ARB | 68(66.0) | 1317(57.3) | 0.079 |
 Calcium blockers | 6(5.8) | 128(5.6) | 0.911 |
 Diuretic | 34(33.0) | 750(32.6) | 0.935 |
 All-cause mortality at 2 years | 7 (6.8) | 119 (5.2) | 0.471 |