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Annals of Intensive Care
Fig. 2 | Annals of Intensive Care

Fig. 2

From: Non-invasive method to detect high respiratory effort and transpulmonary driving pressures in COVID-19 patients during mechanical ventilation

Fig. 2

Bland–Altman plots with regression lines in which measured and computed dynamic transpulmonary driving pressure (∆PL) (a) and respiratory muscle pressure (Pmus) (b) are compared. Computed ∆PL overestimates measured ∆PL (a) (− 1.1 ± 5.9 cmH2O (bias ± 95% limits of agreement), while computed Pmus underestimates measured Pmus (b) (2.3 ± 6.0 cmH2O). Limits of agreement are large for both parameters. There was no significant trend in differences (for ∆PL r2 = 0.27; P = 0.06 and for Pmus r2 = 0.18; P = 0.15)

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