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 | |||
| 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 | |||
| 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 | |||
| 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 | |||
| 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 |
SD standard deviation, PCI percutaneous coronary intervention, VT/VF ventricular tachycardia/fibrillation, ECG electrocardiogram, non-HDL non-high-density lipoprotein, HDL high-density lipoprotein, LDL low-density lipoprotein, ALT alanine aminotransferase, AST aspartate aminotransferase, NT-proBNP N-terminal pro-brain natriuretic peptide, ACE angiotensin-converting enzyme, ARB angiotensin receptor blocker