Table 2. Electrocardiographic findings, echocardiographic findings, and laboratory data.
| All patients | Male | Female | P value | ||
|---|---|---|---|---|---|
| (n = 368) | (n = 84) | (n = 284) | |||
| Electrocardiogram | |||||
| ST elevation | 73.9% | 71.4% | 74.6% | 0.556 | |
| Negative T | 70.7% | 67.9% | 71.5% | 0.522 | |
| QT prolongation | 41.8% | 48.8% | 39.8% | 0.141 | |
| Echocardiography | |||||
| Apical ballooning | 90.8% | 90.5% | 90.8% | 0.918 | |
| Left ventricular ejection fraction (%) | 50 (40–60) | 48 (40–60) | 50 (40–64) | 0.500 | |
| Left ventricular outflow tract obstruction | 8.2% | 4.8% | 9.2% | 0.196 | |
| Pericardial effusion | 5.2% | 6.0% | 4.9% | 0.710 | |
| Left ventricular thrombus | 0.5% | 2.4% | 0% | 0.009 | |
| Laboratory data | |||||
| White blood cell count (cells/μL) | 8500 (6500–11100) | 9100 (7100–11970) | 8100 (6400–11000) | 0.091 | |
| Creatinine kinase on admission (IU/L) | 178 (101–327) | 277 (124–535) | 141 (96–283) | 0.013 | |
| Peak creatinine kinase (IU/L) | 286 (156–499) | 471 (198–713) | 258 (143–394) | 0.012 | |
| C-reactive protein (mg/dL) | 0.38 (0.1–2.4) | 0.56 (0.1–3.0) | 0.32 (0.1–2.1) | 0.055 | |
| Brain natiuretic peptide (pg/mL) | 205 (76–606) | 233 (75–521) | 199 (76–627) | 0.855 | |
| Estimated glomerular filtration rate (mL/min/1.73m2) | 66.6 (47.1–84.1) | 57.5 (36.5–84.7) | 69.0 (51.6–83.9) | 0.052 |