As shown in Table 2, initial assessment of clinical factors linked to CV mortality included age, NYHA class, diastolic blood pressure, PCI, atrial fibrillation, hyperuricemia, anemia, renal dysfunction, peripheral vascular disease, COPD, eGFR, creatinine, urea, C-reactive protein, uric acid, hemoglobin, total cholesterol, and NT-proBNP. Here, NPPB is linked to chronic obstructive pulmonary disease.