Because diagnostic accuracy can be challenging for HHF in registries, it is reassuring that CV diagnoses in Denmark, Norway and Sweden have high validity.32, 33, 34, 35, 36 Anticipated neutral associations with atrial fibrillation and severe hypoglycaemia confirms the balanced risk profile at baseline for the dapagliflozin and DPP‐4 inhibitor groups. Here, DPP4 is linked to atrial fibrillation.