Table 2.

Coefficents of variables in multivariate logistic regression (the model intercept = −3.9273)

Risk factor	P value	β coefficient	S.E	Wald value
Age > 65y	0.23	0.2618	0.2183	1.199
Female	0.005	0.6962	0.2464	2.826
Scr > 2 mg/dl	< 0.001	2.2135	0.5728	3.865
CKD	0.084	1.6619	0.9613	1.729
LVEF< 35%	0.004	0.9189	0.3162	2.906
Previous MI	0.027	0.4528	0.2045	2.215
Hypertension	0.02	0.4955	0.2133	2.323
CPB	0.012	0.5348	0.214	2.5
IABP	0.379	0.5879	0.6684	0.879
Transfusion	0.017	0.626	0.2623	2.387
Ventilation> 24 h	0.064	0.4229	0.2284	1.851