Figure 3.

Reported incidence of pulmonary arterial hypertension in 17 studies identified in systemic review x‐axis text: Incidence per 100,000. Reported incidence of pulmonary arterial hypertension per 100,000 as identified by echocardiography or right heart catheterization. Studies identified by first author and date of publication. Data represent reported incidence and 95% confidence interval. When a confidence interval was not reported, we used cases and sample size to estimate a standard error using Wilson's score