Abbreviations, acronyms & symbols
AKI	= Acute kidney injury		KDIGO	= Kidney Disease Improving Global Outcomes
AUC	= Area under the curve		LDL	= Low-density lipoprotein
BMI	= Body mass index		LVEF	= Left ventricular ejection fraction
BUN	= Blood urea nitrogen		MI	= Myocardial infarction
CABG	= Coronary artery bypass grafting		NLR	= Neutrophil-lymphocyte ratio
CI	= Confidence interval		OR	= Odds ratio
CPB	= Cardiopulmonary bypass		PLR	= Platelet-lymphocyte ratio
CRP	= C-reactive protein		Preop.	= Preoperative
CVA	= Cerebrovascular accident		ROC	= Receiver operating curve
EF	= Ejection fraction		SD	= Standard deviation
Hgb	= Hemoglobin		Sens.	= Sensitivity
IL	= Interleukin		Spec.	= Specificity