NPPB and myocardial infarction: More frequent history of prior MI (26.3% vs. 7.9%,p = 0.002), more often CHF (42.5% vs. 5.3%, p < 0.001),higher level of low density lipoprotein-cholesterol (LDL-C) (2.1 ± 0.8 mmol/L vs. 1.8 ± 0.6 mmol/L,p = 0.036) and NT-proBNP [1024.0 (201.3–2684.3) pg/mL vs. 284.0(75.8–904.5) pg/mL, p < 0.001] were observed in the IABP group.