Baseline characteristic of the study patients
| Variables | Overall (n=541) | Survive (n=478) | Death (n=63) | p Value |
|---|---|---|---|---|
| Age, years (mean±SD) | 63.5±12.1 | 62.6±12.0 | 69.8±10.8 | 0.001 |
| Male (n, %) | 375 (69.3) | 344 (71.9) | 31 (49.2) | 0.001 |
| BMI, kg/m2 (mean±SD) | 23.3±3.9 | 23.4±3.8 | 23.0±3.7 | 0.482 |
| Pulse rate (mean±SD) | 80.8±22.9 | 80.4±21.7 | 84.3±30.6 | 0.213 |
| Diabetes mellitus (n, %) | 163 (30.1) | 139 (29.8) | 24 (38.1) | 0.152 |
| Hypertension (n, %) | 198 (36.6) | 171 (35.7) | 27 (42.8) | 0.290 |
| Smoking (n, %) | 192 (35.4) | 181 (37.8) | 11 (17.4) | 0.001 |
| Previous CAD (n, %) | 42 (7.7) | 35 (7.3) | 7 (11.1) | 0.340 |
| Killip classification | ||||
| Class I (n, %) | 145 (26.8) | 137 (28.6) | 8 (12.7) | 0.004 |
| Class II (n, %) | 80 (14.8) | 73 (15.2) | 7 (17.1) | |
| Class III (n, %) | 15 (2.7) | 15 (3.14) | 0 (0) | |
| Class IV (n, %) | 301 (55.6) | 253 (52.9) | 48 (76.2) | |
| Cardiogenic shock at admission (n, %) | 301 (55.6) | 253 (52.9) | 48 (76.1) | 0.001 |
| Creatinine >1.5 mg/dL (n, %) | 127 (23.4) | 102 (21.34) | 25 (39.68) | 0.001 |
| Haemoglobin <10 g/dL (n, %) | 75 (13.8) | 56 (11.7) | 19 (30.1) | 0.001 |
| Admission troponin T, ng/mL (mean±SD) | 4.6±7.5 | 4.3±6.9 | 6.9±10.7 | 0.011 |
| Admission plasma glucose, mg/mL (mean±SD) | 199.5±111.3 | 191.6±104.7 | 256.7±138.8 | 0.001 |
| Total cholesterol, mg/mL (mean±SD) | 189.8±75.0 | 191.3±73.7 | 172.4±89.5 | 0.279 |
| LVEF <40% (n, %) | 123 (22.7) | 99 (20.7) | 24 (38.0) | 0.001 |
| Median door-to-device time (min) | 65 | 65 | 60 | 0.734 |
| Door-to-device time >90 min | 119 (22.0) | 108 (22.5) | 11 (9.2) | 0.331 |
| Length of hospital stay (day) (mean±SD) | 5.2 (5.9) | 5.5 (6.1) | 2.7 (1.8) | 0.001 |
| In-hospital medication | ||||
| ASA (n, %) | 522.0 (96.5) | 464.0 (97.0) | 58.0 (92.0) | 0.617 |
| Clopidogrel (n, %) | 513.0 (94.8) | 455.0 (95.1) | 58.0 (92.0) | 0.237 |
| β-blocker (n, %) | 123.0 (22.7) | 122.0 (25.8) | 1.0 (1.6) | 0.001 |
| ACEI (n, %) | 101.0 (18.6) | 99.0 (18.2) | 2.0 (3.4) | 0.001 |
ACEI, ACE inhibitor; ASA, acetylsalicylic acid (aspirin); BMI, body mass index; CAD, coronary artery disease; LVEF, left ventricular ejection fraction.