Fig. 2From: Risk stratification and prognostic factors in patients with pulmonary arterial hypertension and comorbidities a cross-sectional cohort study with survival follow-upKaplan Meier Curves. Survival and time to clinical worsening curves of patients with PAH (left) and PAH with comorbidities (right) in the average risk group of four risk factors. Only PAH patients without comorbidities showed significant differences in survival and time to clinical worsening in average risk groupsBack to article page