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Fig. 3 | Respiratory Research

Fig. 3

From: Non-invasive respiratory support in SARS-CoV-2 related acute respiratory distress syndrome: when is it most appropriate to start treatment?

Fig. 3

Above: Kaplan–Meier curves related to the analysis of mortality rates (a) and overall oro-tracheal intubation (OTI, b) among patients undergoing treatment with CPAP/NIV with a P/F between 151 and 200 (group A) and patients who initiated the treatment with a P/F between 101 and 150 (group B). Below: Kaplan–Meier curves related to the analysis of mortality (c) and OTI (d) rates among patients undergone CPAP/NIV in a moderate degree of respiratory distress (group A + B, P/F 101–200) and patients referred for treatment in a severe degree of respiratory distress (group C, P/F ≤ 100)

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