Clinical profiles and mortality risk factors in pediatric pulmonary hemorrhage: a singlecenter study in Saudi Arabia.

Background: Pulmonary hemorrhage (PH) is a rare, life-threatening event characterized by bleeding into the airways and lung parenchyma.

Objectives: To explore the clinical characteristics of PH patients and investigate mortality-related risk factors, providing a holistic understanding of patient outcomes in this population.

Design: A retrospective cohort study.