175 (63%) от участниците имат диагноза първична белодробна хипертония, 84 (30%) – БАХ свързана със съединителнотъканна болест (СТБ), а 18 (7%) – БАХ след хирургична корекция на вродени сърдечни лезии.
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.