Demographic n= (%) or median= (range) n= (%) or median= (range)
Age 65 (29 – 83)
Male 223 (84.5)
Urgent operation (for acute coronary syndrome) 148 (56.1) 148 (56.1)
Preoperative ejection fraction (%) 55 (15 – 70) 55 (15 – 70)
Preoperative creatinine 0.96 (0.47 – 8.46) 0.96 (0.47 – 8.46)
Preoperative hematocrit 41 (24.9 – 55.8) 41 (24.9 – 55.8)
Preoperative hemoglobin A1c 6.1 (4.6 – 15.0) 6.1 (4.6 – 15.0)
Body mass index 29.69 (17.74 – 56.94) 29.69 (17.74 – 56.94)
Diabetes mellitus 127 (48.1) 127 (48.1)
Insulin-dependent 40 (15.2) 40 (15.2)
Obstructive sleep apnea 67 (25.4) 67 (25.4)
Chronic obstructive pulmonary disease 42 (15.9) 42 (15.9)
Mild 31 (11.7) 31 (11.7)
Moderate / Severe 11 (4.2) 11 (4.2)
STS predicted risk of mortality (%) 0.71 (0.19 – 9.78) 0.71 (0.19 – 9.78)