Table II.

Adverse events during the immediate post-operative period after coronary artery bypass surgery. Results of univariable and multivariable analyses for prediction of post-operative stroke are reported.

	N.	Univariable analysis p-value	Multivariable analysis OR, 95% CI
In-hospital mortality	50 (2.2)	-
Stroke	53 (2.4)	-
Low cardiac output syndrome	324 (14.6)	0.001
Post-operative blood loss (mL)	858±590	0.16
Resternotomy for bleeding	138 (6.2)	0.57
“Surgical bleeding”	83 (3.7)	0.72
RBC transfusion	1,134 (50.9)	0.005
RBC units transfused*	2.0±3.1	<0.0001	1.121, 1.065–1.180
Octaplas® transfusion	486 (21.8)	<0.0001
Octaplas® units transfused*	0.8±2.0	<0.0001
Platelet transfusion	458 (20.6)	<0.0001
Platelet units transfused*	1.8±4.9	<0.0001
De novo dialysis	41 (1.8)	<0.0001
Atrial fibrillation*	799 (35.9)	0.043
ICU stay (days)	2.2±3.1	-
ICU stay ≥5 days	222 (10.0)	-
Composite outcome end-point	548 (24.6)	-

Legend: Continuous variables are reported as mean ± standard deviation or counts (%); RBC: red blood cell; ICU: intensive care unit; Composite end-point: in-hospital death, low cardiac output syndrome, de novo dialysis, stroke, repeat sternotomy for excessive bleeding, or intensive care unit stay ≥5days;

^*:variable included in the logistic regression model.