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. 2019 Jul 1;34(4):696–707. doi: 10.3904/kjim.2019.185

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Copyright © 2019 The Korean Association of Internal Medicine

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted noncommercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 1. — Cumulative survival and comparison of survival among etiologies. (A) Cumulative survival curve of the incident cases in the Korean Registry of Pulmonary Arterial Hypertension (KORPAH; n = 297). The 1st-, 2nd- and 3rd-year estimated survival rates were 90.8%, 87.8%, and 84.4%, respectively. (B) Comparison of survival according to the etiologies of pulmonary arterial hypertension (PAH) of the incident cases in the KORPAH (n = 297). This figure presents a comparison of prognoses according to the etiologies of PAH. PAH with connective tissue disease (CTD) corresponded to the highest mortality (18.8%), followed by idiopathic PAH (IPAH) (8.1%), and PAH with congenital heart disease (CHD; 3.9%) (p = 0.043).