Additional file 1 of Association between ventilation–perfusion matching improvement during initial prone positioning and ICU mortality in patients with moderate to severe ARDS: a prospective two-center study

Supplementary Material 1: Additional file 1: 1. Online Table 1.1 Table S1. Comparison of ventilatory variables, arterial blood gas, hemodynamic status, and electrical impedance tomography between responder and non-responder groups during the first PP session. 1.2 Table S2 Changes in shunt, dead space, and V/Q matching 4 hours within the first PP in responders and non-responders. 1.3 Table S3 Comparison of echocardiographic variables between responders and non-responders in the supine position before and after PP. 2. Online Figures. 2.1 Figure S1 Flow chart. 2.2 Figure S2 Comparison of PEEP (A), tidal volume (B), driving pressure (C), and respiratory system compliance (D) between responders and non-responders during the first PP session. 2.3 Figure S3 Comparison of PaO2 (A), PaCO2 (B), PaO2/FiO2 (C), and ventilatory ratio (D) between responders and non-responders during the first PP session. 2.4 Figure S4 Comparison of CVP (A) and ScvO2 (B) between responders and non-responders during the first PP session. 2.5 Figure S5 Changes in ventilation (A) and perfusion (B) distribution across four ventral-to-dorsal horizontal regions during the first PP session.