NPPB and diabetes mellitus: The clinical characteristics were similar between the two groups in terms of sex, age, diabetes, hypertension, history of the previous hospitalization, NYHA class, BMI, N-terminal pro-natriuretic brain natriuretic peptide (NT-proBNP), LVEDD, LVESD, E/e', E/A, and LVEF (p > 0.05).