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Carr et al. Vessel Plus 2020;4:12 I http://dx.doi.org/10.20517/2574-1209.2020.01 Page 17 of 21

100% 100% 100% 100%
%

n = 1 1 1 1 1 3

Long-term models

Variable On- vs. off-pump CABG Total variables (excl. combinations)

History of MI Comb. any MI variable

Age

100% 100%
% 67% 67% 67% 67% 33% 33% 33% 33% 33% 33% 33% 33% 33% 33% 33% 33% 33% 33% 33% 33% 33% 33% 33% 33% 33% 33% 33% 33% 33% 33% 33% 33%

n = 3 3 3 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 26

Short-term models Comb: combination variable; CHF: congestive heart failure; NYHA: New York Heart Association; MI: myocardial infarction; ECG: electrocardiogram; IABP: intra-aortic baloon pump; HTN: hypertension; BP: blood pressure; PCI: percutaneous coronary intervention; PTCA: percutaneous transluminal coronary angioplasty; CPR: cardiopulmonary resuscitation; ASA: American Society of A

Variable On- vs. off-pump CABG Body size measurements Left ventricular function Pulmonary hypertension Peripheral arterial disease Comb. arterial disease Comb. any MI variable Preoperative diuretic use Comb. heart failure variables Comb. CHF or NYHA Number of diseased vessels Comb. vessel disease Preoperative IABP use Inotropic medication Comb. ECG or arrhythmia variables Total variables (excl. combinations)

Age Gender Renal failure Urgency Comb. critical state Diabetes Lung disease Repeat operation Neurologic disease NYHA class History of MI Active MI Hypertension Comb. HTN or BP Race or ethnicity Left main disease Cardiogenic shock Any arrhythmia Steroid use

100% 100%
% 50% 50% 50% 50% 50% 50% 25% 25% 25% 25% 25% 25% 25% 25% 25% 25% 25% 25% 25% 25% 25% 25% 25% 25% 25% 25% 25% 25% 25% 25% 25% 25%
Table 6. Models considering on- vs. off- pump CABG
n = 4 4 4 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 26 angiotensin converting enzyme; INR: international normalized ratio; PT: prothromin time

On- vs. off-pump CABG Comb. any MI variable Comb. critical state Body size measurements Left ventricular function Pulmonary hypertension Neurologic disease Peripheral arterial disease Comb. arterial disease Preoperative diuretic use Comb. heart failure variables Comb. CHF or NYHA Number of diseased vessels Comb. vessel disease Comb. HTN or BP Preoperative IABP use Inotropic medication Left main disease Cardiogenic shock Comb.

All models Variable Age Gender Renal failure Urgency History of MI Diabetes Lung disease Repeat operation NYHA class Active MI Hypertension Race or ethnicity Any arrhythmia Steroid use