Final models of multivariable analysis adjusted by a propensity score showing differences between Body Mass Index groups.

<p>Final models of multivariable analysis adjusted by a propensity score showing differences between Body Mass Index groups.</p

Distribution of preoperative variables according Body Mass Index group.

<p>COPD = Chronic Obstructive Pulmonary Disease; NYHA = New York Heart Association classification; LVEF = Left ventricular ejection fraction; EuroSCORE = European system for cardiac operative risk evaluation. Results are expressed as mean ± standard deviation or percentage. Statistical results correspond to ANOVA <i>p</i> values. Bonferroni post hoc testing with statistical significant differences:</p><p>^A between Normal weight and overweight subgroup;</p><p>^B between Normal weight and obese subgroup;</p><p>^C between Normal weight and morbidly obese subgroup.</p><p>Distribution of preoperative variables according Body Mass Index group.</p

Kaplan-Meier survival curves comparing normal vs. overweight BMI groups.

<p>Kaplan-Meier survival curves comparing normal vs. overweight BMI groups.</p