In the final 9‐predictor model, the strongest predictors of HHF in T2DM were (1) age, (2) coronary artery disease, (3) blood urea nitrogen, (4) atrial fibrillation, (5) hemoglobin A1c, (6) blood albumin, (7) systolic blood pressure, (8) chronic kidney disease, and (9) smoking history. Here, ALB is linked to atrial fibrillation.