Variable Odds ratio 95% CI p Value
Critical preoperative state 5.62 2.85 – 11.44 <0.001
Coronary malperfusion 3.59 1.60 – 7.96 0.002
Coronary artery disease 2.64 1.06 – 6.41 0.033
Prior cerebrovascular accident 5.56 1.84 – 16.27 0.002