Role of the Systemic Inflammatory Response Index in Predicting Disease Severity and Prognosis in Idiopathic Pulmonary Arterial Hypertension.

"Disclosure The authors declared that they have no conflicts of interest."

"This research article was supported by Beijing Municipal Science and Technology Project [Z181100001718200]; Beijing Municipal Natural Science Foundation [7202168]; CAMS Innovation Fund for Medical Sciences (CIFMS) [2020-I2M-C&T-B-055, 2021-I2M-C&T-B-032]; “Double First-Class” Discipline Construction Fund of Peking Union Medical College and Chinese Academy of Medical Sciences [2019E-XK04-02]; the Capital’s Funds for Health Improvement and Research (CFH) [2020-2-4033, 2020‐4‐4035]; National High Level Hospital Clinical Research Funding [2022-GSP-GG-35]. The funding sources were not involved in study design or in the collection, analysis or interpretation of data or in the writing of the report or in the decision to submit the article for publication."