Figure 1.

Participant (A) geographic region, (B) race, (C) sex, and (D) disease etiology over time. Data are displayed as cumulative counts (top) and overall percentage of participants (bottom) over time. AUS = Australia; CA = Canada; CHD-PH = pulmonary arterial hypertension associated with congenital heart disease; CTD-PH = pulmonary arterial hypertension associated with connective tissue disease; IPAH = idiopathic pulmonary arterial hypertension; ISR = Israel; Other = includes all other group I etiologies; US = United States.