Longitudinal trends in predictors of VA events, presented as the change in predictor value at follow-up relative to time of ARVC diagnosis: A) log of 24-hour PVC burden, B) presence of NSVT on cardiac ambulatory monitoring, C) number of TWI in precordial and inferior leads, D) the extent of strenuous exercise per week, E) presence of moderate or severe RV dysfunction from echocardiography, F) LVEF from echocardiography, G) anti-arrhythmic prescription, and H) beta blocker prescriptions