Fig. 4.
Importance matrix plot of the RF model. This importance matrix plot depicts the importance of each covariate in the development of the final predictive model. Abbreviations: HGB, hemoglobin; eGFR, estimated glomerular filtration rate; CKD-EPI, Chronic Kidney Disease Epidemiology Collaboration; LV, left ventricular; MAP, mean arterial pressure; PCA, principal component analysis; BMI, body mass index; RV, real variability; HR, heart rate; SBP, systolic blood pressure; LVEDD, left ventricular end-diastolic diameter; HTN, hypertension; FFP, fresh frozen plasma; PLT, platelet; ASA, American Society of Anesthesiologists; CHF, congestive heart failure; DM, diabetes mellitus; CCS, Canadian Cardiovascular Society; CABG, coronary artery bypass grafting; ARB, angiotensin II receptor blocker, COPD, chronic obstructive pulmonary disease; OHA, oral hypoglycemic agent; ER, emergency room; ACEi, angiotensin-converting-enzyme inhibitor; CAD, coronary artery disease; PAOD, peripheral artery occlusive disease