Prediabetes and incident heart failure in hypertensive patients: Results from the Swedish Primary Care Cardiovascular Database

•Prediabetes is often coexisting in hypertension.•We compared prediabetic hypertensive patients with normoglycemic.•Prediabetes was not associated with increased risk of incident heart failure.•Prediabetes, by WHO definition, was associated with increased all-cause mortality.•Time in therapeutic blood pressure range was lower in the prediabetic group.