Crude and multivariable adjusted association between BIMA use and all-cause mortality in 49702 patients who underwent non-emergent primary isolated CABG during 1997 to 2008 in Sweden.

Reference category.Multivariable adjustment was made for age, gender, estimated glomerular filtration rate, left ventricular ejection fraction, diabetes mellitus, chronic obstructive pulmonary disease, peripheral vascular disease, preoperative myocardial infarction, stroke, heart failure, perioperative acute kidney injury, and the use of cardiopulmonary bypass during surgery.BIMA = bilateral internal mammary artery, CABG = coronary artery bypass grafting, CI = confidence interval, HR = hazards ratio, SIMA = single internal mammary artery.