NPPB and acute kidney injury: Logistic regression analysis, both univariate and multivariate of statistically significant variables in Table 1 showed that eGFR (P = 0.01), BNP (P = 0.000), HDLC (P = 0.036), UA (P = 0.002), K+ (P = 0.005) were AKI risk factors in AMI patients (P < 0.05; Table 2).