Endogenous Ouabain: An Old Cardiotonic Steroid as a New Biomarker of Heart Failure and a Predictor of Mortality after Cardiac Surgery

Table 3

Logistic Regression with mortality.

	Variables	value^#	value	Exp()	CI (95%)
Reference	EuroSCORE	0.001	—	1.10	1.03–1.18
Clinical characteristics	Age	0.004	0.039	1.08	1.00–1.16
	LVEF	n.s.	n.s.
	NYHA	0.027	n.s.
	Basal creatinine	0.006	n.s.
	Hypertension	n.s.	n.s.
	Diabetes	n.s.	n.s.
Surgery type	REDO	0.001	0.011	5.02	1.45–17.33
	Complex	0.023	0.04	2.17	1.04–4.56
	EEC	n.s.	n.s.
Complications	AKI	<0.001	<0.001	53.24	10.99–257.87
EO	Preoperative EO	n.s.	n.s.
	Postoperative EO	0.025	0.046	1.04	1.00–1.07
	Postoperative EO > 363 pmol/L	0.04	0.049	3.58	1.03–12.78

value for Logistic Regression (not correct); value and Exp() for Logistic Regression after correction for EuroSCORE.
n.s: not significant; Exp(): expected beta for Logistic Regression; LVEF: left ventricular ejection fraction; REDO: reintervention; complex: combined surgery or Aortic Arch surgery; EEC: extracorporeal circulation; AKI: acute kidney injury (by AKIN criteria; see [34]).