Cox proportional hazards model for 30-day mortality.

eGFR, estimated glomerular filtration rate (mL/min/1.73 m2); AKI, acute kidney injury; AHR, adjusted hazard ratio; CI, confidence interval.The model was adjusted for age creatine phosphokinase-MB, and admission glycemia (categorized by quartiles with the first as a reference), gender (females were used as the reference), history of prior coronary artery bypass graft, ST elevation myocardial infarction, history of diabetes, history of hypertension, admission Killip class >I, systolic blood pressure 100 beats/min, clopidogrel use during hospitalization, use of diuretics, coronary angiography during hospitalization, reinfarction, severe systolic left ventricular dysfunction and any percutaneous coronary intervention performed during hospitalization.