NPPB and myocardial infarction: As indicated in Table 1, patients with CI found during hospitalization for MI had significantly lower GFRs (85 (73–101) vs. 90 (76–105); p = 0.02), as well as higher BNP levels (127.4 (73.1–265.1) vs. 96.9 (53.2–199.8); p = 0.01) and lower ejection fraction (48 (41–50) vs. 48 (45–54); p = 0.05), compared to those without deficits.