Table 5.

Multivariable logistic regression models for major complications

Predictor Variable	Adjusted OR	P
Model evaluating body mass index
Body Mass Index, Normal	Reference
Underweight	0.24 (0.04 – 1.61)	0.14
Overweight	1.34 (0.90 – 2.00)	0.15
Obese	1.51 (0.86 – 2.66)	0.15
Extremely Obese	2.87 (1.07 – 7.67)	0.04
Model examining preoperative serum albumin
Albumin >4 g/dL	Reference
<2 g/dL	4.99 (1.49 – 16.73)	0.009
2–3 g/dL	2.78 (1.75 – 4.41)	<0.001
3–4 g/dL	1.28 (0.95 – 1.73)	0.10

Area under receiver operator characteristic curve 0.85, Data analyzed >93%, Nagelkerke R² ≥0.38

OR, Odds Ratio

CI, Confidence Interval

Models adjusted for age, female gender, weight, race, preoperative diabetes, preoperative dialysis dependent renal failure, preoperative smoking, preoperative stroke, New York Heart Association functional heart failure class IV, left ventricular ejection fraction, left anterior descending disease 50% or greater, elective status, aortic cross-clamp time, intensive care unit length of stay