175 patienter (63%) inkluderes med diagnosen primær pulmonal hypertension, 84% (30%) med diagnosen PAH forbundet med bindevævssygdom (CTD) og 18% (7%) af patienterne med diagnosen PAH efterfulgt kirurgisk intervention af medført hjertelidelser.
175 patients (63%) included were diagnosed with primary pulmonary hypertension, 84 (30%) were diagnosed with 10 PAH associated with connective tissue disease (CTD) and 18 (7%) of the patients were diagnosed with PAH following surgical repair of congenital heart lesions.