Figure 3. Variable Importance in the Random Forest Model.

Abbreviations: PADiam: Pulmonary artery diameter; DLCO: Diffusing capacity for carbon monoxide; FVC; Forced vital capacity; LVEF: Left ventricular ejection fraction; RVdil: Right ventricular dilation; LAdil: Left atrial dilation; AR: Aortic regurgitation; LVdias: Left ventricular diastolic dysfunction; RAdil: Right atrial dilation; PR: Pulmonic regurgitation; TR: Tricuspid regurgitation; LVH: Left ventricular hypertrophy; Pericard: Pericardial effusion; MR: Mitral regurgitation; RVdys: Right ventricular dysfunction; LAD: Left axis deviation; RBBB: Right bundle branch block; RAD: Right axis deviation.