NPPB and diabetes mellitus: In the clinical-only model, the predictors included: thrombocyte count, oxygen saturation measured by pulse oximetry/fraction of inspired oxygen (SpO2/FiO2), comorbid diabetes mellitus, high-sensitive cardiac troponin T (hs-cTnT), N-terminal pro–B-type natriuretic peptide (NT-proBNP), age and SpO2.