Table 1 Keywords used in the literature searching.

1

((Indicator) OR (Predictor) OR (Prognostic) OR (Diagnostic) OR (“Predictive Value”) OR (Mortality) OR (Death) OR (Mortalities) OR (Severity))

2

((“RDW-Albumin Ratio”) OR (“RDW to serum albumin value”) OR (“Red Blood Cell Distribution Width-Albumin ratio”) OR (“Red Cell Distribution Width-to-Albumin ratio”) OR (“Red Cell Distribution Width-Albumin ratio”) OR (“Red Blood Cell Distribution Width-to-Albumin ratio”) OR (“Red Blood Cell Distribution Width”) OR (“Red Cell Distribution Width”))

3

((“Angina pectoris”) OR (Aorta) OR (“Aortic Dissection”) OR (Arrhythmia) OR (Arterial) OR (Arteriosclerosis) OR (Atherosclerosis) OR (Atrial) OR (Atrial Fibrillation) OR (“Cardiac arrest”) OR (Cardiomyopathy) OR (“Cardiovascular Disease”) OR (“Congenital heart disease”) OR (“Cor Pulmonale”) OR (“Coronary Artery Disease”) OR (CVD) OR (“Heart Disease”) OR (“Heart failure”) OR (“Hemorrhagic Stroke”) OR (“Ischemic Heart Disease”) OR (“Ischemic Stroke”) OR (“Myocardial Infarction”) OR (“Peripheral Artery Disease”) OR (“Pulmonary Embolism”) OR (“Pulmonary Hypertension”) OR (“Rheumatic Heart Disease”) OR (Stroke) OR (Thromboembolism) OR (“Valvular heart disease”) OR (Vasculitis) OR (“Venous Thrombosis”) OR (Ventricular))

Final

1 AND 2 AND 3