NPPB and diabetes mellitus: A logistic analysis that incorporated the aforementioned biomarkers (NT-proBNP at admission and at discharge and MR-proADM) and comorbidities showed a significant increased risk of re-hospitalization only for diabetes, which was associated with a four times higher risk of re-hospitalization compared to non-diabetic AHF patients (odds ratio (OR) = 4.21; 95% CI 1.38–12.87).