Figure 4–
a) 3-yr survival from study entry of incident (------) and prevalent (——) patients with idiopathic, familial and anorexigen-associated pulmonary arterial hypertension. b) Survival from study entry according to quartiles of time from diagnosis in the prevalent population. ——: >80 months; ……: 40–80 months; ------: 16–40 months; – – – –: <16 months. p<0.001.