NPPB and acute kidney injury: The results showed that FBG (OR = 1.098, 95% CI: 1.023–1.179), NT-proBNP (OR = 1.486, 95% CI: 1.189–1.857), lymphocyte (OR = 0.645, 95% CI: 0.439–0.949), and IBI > 18.89 (OR = 2.418, 95% CI: 1.331–4.392) were independent factors affecting the occurrence of CI-AKI in STEMI patients (Table 2).