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.
175 (63%) uuringus osalenud patsiendil diagnoositi primaarne pulmonaalhüpertensioon, 84 (30%) patsiendil diagnoositi sidekoehaigusega (CTD) seotud PAH ja 18 (7%) patsiendil diagnoositi pärast kaasasündinud südamerikete kirurgilist korrektsiooni tekkinud PAH.