Additional file 1 of The role of cell-free hemoglobin and haptoglobin in acute kidney injury in critically ill adults with ARDS and therapy with VV ECMO

Additional file 1: Supplemental Methods. Data sources, Table S1. Characteristics between patients with and without AKI at ECMO initiation, Figure S1. Distribution of CFH concentration of the study population, Figure S2. Distribution of haptoglobin concentration of the study population, Figure S3. Detailed overview of KDIGO 3 AKI components and indications for RRT in patients with acute RRT at ECMO initiation.