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Fig. 5 | Intensive Care Medicine Experimental

Fig. 5

From: Mechanical power at a glance: a simple surrogate for volume-controlled ventilation

Fig. 5

a, b Relationship between our unadjusted surrogate of mechanical power (Eq. 3) and the reference formula (Eq. 1) in ICU patients treated with 15 cmH2O of PEEP: panel a shows the linear regression (R2 = 0.97), and panel b shows the Bland-Altman (bias = − 3.14 J/min; proportional error = − 0.21 J/min). c, d Relationship between our adjusted surrogate of mechanical power (Eq. 9) and the reference formula (Eq. 1) in ICU patients treated with 15 cmH2O of PEEP: panel c shows the linear regression (R2 = 0.97), and panel d shows the Bland-Altman (bias = − 0.28 J/min; proportional error = − 0.05 J/min). e, f Relationship between our adjusted surrogate of mechanical power (Eq. 3) and the reference formula (Eq. 1) in ICU patients treated with 15 cmH2O of PEEP and with respiratory system resistances higher than 15 cmH2O∙sec/liters: panel e shows the linear regression (R2 = 0.98), and panel b shows the Bland-Altman (bias = − 1.35 J/min; proportional error = − 0.12 J/min)

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