BMI: body mass index; LVEF: left ventricular ejection fraction; CKD: chronic kidney disease; eGFR: estimated glomerular filtration rate; CVA: cerebrovascular accident; PVD: peripheral vascular disease; COPD: chronic obstructive pulmonary disease; NYHA: New York Heart Association; CCS: Canadian Cardiovasular Society; CABG: coronary artery bypass grafting; CAD: coronary artery disease; IMA: internal mammary artery.