Fig. 3

Sankey diagram of changes in HFA-PEFF score from baseline to follow up. There were 73(49.7%) CTD-PAH having HFA-PEFF score ≥ 5 and 74(50.3%) patients < 5 at baseline. Among 78 patients who had the follow-up data, 64(82.1%) patients having HFA-PEFF score ≥ 5 and 14(17.9%) patients < 5 at follow up. CTD = connective tissue disease, PAH = pulmonary arterial hypertension