Distribution of intraoperative and postoperative variables according BMI group.

SAPS = Simplified Acute Physiology Score; APACHE = Acute Physiology and Chronic Health Evaluation; CABG = coronary artery bypass graft; ACC = Aortic cross clamping; CPB = cardiopulmonary bypass. PaO2/FiO2 = Arterial partial pressure of O2 and fraction of inspired oxygen ratio; LCOS = Low Cardiac Output Syndrome; PMI = Perioperative Myocardial Infarction; IABP = intra-aortic balloon pump. Results are expressed as mean ± standard deviation or percentage. Statistical results correspond to ANOVA p values. Bonferroni post hoc testing with statistical significant differences:A between Normal weight and overweight subgroup;B between Normal weight and obese subgroup;C between Normal weight and morbidly obese subgroup.Distribution of intraoperative and postoperative variables according BMI group.