Table 2.

Transfusion risk and regression logistic analysis of perioperative variables associated with blood transfusion.

Variable	Transfusion vs. No Transfusion		Transfusion Risk		Univariate Analysis		Multivariate Analysis
	t-test	X2	OR	CI (95%)	Numerical	Categorical
Gender	-	0.1002	-	-	-	0.014
Age	0.0028	0.0405	2.962	1.017 – 8.625	0.0050	0.0335
B.M.I.	0.0155	0.0011	5.813	1.852 – 18.244	0.0212	0.0026
B.S.A.	0.0249	0.0152	2.815	1.204 – 6.582	0.0288	0.0169
Hemoglobin	0.0055	0.0457	2.519	1.003 – 6.325	0.0077	0.0493
Euro SCORE (standard)	0.0052	0.0149	2.858	1.210 – 6.747	0.0082	0.0166
Euro SCORE (logistic)	0.0200	0.0571	2.408	1.022 – 5.670	0.0284	0.0444
No. of Distal anastomoses	0.0390	-	-	-	0.0431	-
Radial artery use	-	0.0121	2.944	1.247 – 6.951	-	0.0137
Postoperative bleeding	0.0043	0.0012	8.696	1.922 – 39.335	0.0086	0.0050
Use of CPB	-	0.0003	5.271	2.028 – 13.704	-	0.0007	0.0001
Hematocrit	0.0062	0.0090	3.476	1.447 – 8.350	0.0013	0.0039	0.0021
Weight	0.0032	0.0003	4.991	1.980 – 12.579	0.0093	0.0007	0.0105
S. creatinine	0.9780	0.0005	4.602	1.460 – 14.506	0.9778	0.0092	0.0142

B.M.I: Body Mass index.

B.S.A: Body surface area.

CPB: Cardiopulmonary Bypass.