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Cumulative incidence of the primary endpointa in patients <50 years when receiving their first pacemaker due to atrioventricular block compared with the general population.b CI, confidence interval. aComposite of death from any cause, heart failure hospitalization, ventricular tachyarrhythmia hospitalization, and cardiac arrest with successful resuscitation. bControls from the general population were matched 10:1 for age and gender. Dashed line represents median follow-up time.
