Table 2.

Preoperative factors used in logistic regression analyses

Preoperative factors	Intraoperative factors
Age	Duration of cardiopulmonary bypass
Gender	Cross-clamp time
Hypertension	Circulatory arrest time ≥ 40 minutes
Diabetes	Core temperature during circulatory arrest
Left ventricular ejection fraction	Deep hypothermic circulatory arrest
ASA classification	Modified hypothermic circulatory arrest
Preoperative PaO2/FiO2 Ratio
Renal insufficiency
Liver function impairment

ASA, American Society of Anesthesiologist.