Table 2.
Univariate and multivariate Cox regression analyses for in-hospital all-cause mortality.
| Univariate Analyses | Multivariate Analyses | |||||
|---|---|---|---|---|---|---|
| Variables | Hazard Ratio | 95% CI | p Value | Hazard Ratio | 95% CI | p Value |
| Age > 60-year-old | 2.060 | 0.271–15.675 | 0.485 | |||
| Male gender | 1.730 | 0.614–4.874 | 0.299 | |||
| Shock to ECMO time (mins) | 1.000 | 0.996–1.004 | 0.928 | |||
| OHCA | 1.989 | 0.629–6.289 | 0.242 | |||
| CPR | 1.154 | 0.418–3.185 | 0.783 | |||
| SBP < 80 mmHg | 2.139 | 0.675–6.782 | 0.196 | |||
| HR > 120 beats/min | 2.120 | 0.682–6.587 | 0.194 | |||
| Cardiac rhythm as VT/VF | 1.154 | 0.418–3.185 | 0.783 | |||
| Platelet (×103) | 0.996 | 0.990–1.002 | 0.160 | |||
| Total bilirubin (mg/dL) | 1.498 | 0.965–2.325 | 0.072 | |||
| Lactate acid (initial) (mg/dL) | 1.020 | 1.006–1.033 | 0.003 | |||
| Lactate acid (24 h) (mg/dL) | 1.057 | 1.029–1.086 | <0.001 | 1.064 | 1.029–1.099 | <0.001 |
| Peak Troponin-I (ng/mL) | 1.009 | 1.001–1.016 | 0.032 | 1.014 | 1.004–1.024 | 0.008 |
| Peak CK-MB (ng/mL) | 1.005 | 1.002–1.008 | <0.001 | |||
| pH value of arterial gas | 0.064 | 0.008–0.527 | 0.011 | |||
| LVEF (%) | 0.988 | 0.944–1.033 | 0.592 | |||
| Acute kidney injury (%) | 6.485 | 0.851–49.417 | 0.071 | |||
| The need of hemodialysis (%) | 5.744 | 1.807–18.254 | 0.003 | |||
| Hypoxic encephalopathy (%) | 3.623 | 1.220–10.763 | 0.020 | |||
| Ischemic leg (%) | 2.389 | 0.864–6.607 | 0.093 | |||
| ICH (%) | 2.853 | 0.110–1.119 | 0.077 | |||
| Prior IABP setting (%) | 0.676 | 0.215–2.127 | 0.503 | |||
| The need of LV venting (%) | 1.107 | 0.249–4.915 | 0.893 | |||
Abbreviations: ECMO: Extracorporeal membrane oxygenation; OHCA: Out-hospital cardiac arrest; CPR: Cardiopulmonary resuscitation; SBP: Systolic blood pressure; HR: Heart rate; VT: Ventricular tachycardia; VF: Ventricular fibrillation; AST: Aspartate aminotransferase; ALT: Alanine aminotransferase; CK-MB: Creatine kinase muscle/brain; LVEF: Left ventricular ejection fraction; ICH: Intracranial hemorrhage; IABP: Intra-aortic balloon pumping; LV: Left ventricle.