NPPB and prediabetes syndrome: Outcomes included fasting plasma glucose, hemoglobin A1c, C-peptide, N-terminal prohormone of brain natriuretic peptide, high-sensitivity cardiac troponin T, C-reactive protein, ferritin, diabetes/prediabetes (fasting plasma glucose ≥5.6 mmol/L and/or hemoglobin A1c ≥5.7%), and homeostatic model of insulin resistance.