NPPB and diabetes mellitus: These were LVEF (0.27), the number of implanted stents (0.14), age (0.13), diabetes (0.10), the number of vessels with coronary artery disease (0.09), vascular disease (0.08), brain natriuretic peptide (0.05), glucose (0.05), beta 2 microglobulin (0.04), and abnormal Q wave (0.02).