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Table 3 Flow Index coefficient of unadjusted and adjusted linear mixed effects models

From: Flow Index: a novel, non-invasive, continuous, quantitative method to evaluate patient inspiratory effort during pressure support ventilation

 

Flow Index coefficient (95% CI)

P value

Flow Index coefficient (95% CI) adjusted for RR and VT

P value

PTPratio, breath

0.03 (0.03, 0.04)

< 0.0001

0.03 (0.03,0.04)

< 0.0001

PTPpt,breath

0.19 (0.13, 0.25)

< 0.0001

0.23 (0.17, 0.29)

< 0.0001

Pmusc

0.34 (0.24, 0.43)

< 0.0001

0.33 (0.23 0.42)

< 0.0001

  1. RR = respiratory rate, VT = tidal volume, PTPpt,breath = Pressure–time product for the patient in the single breath, PTPratio,breath = PTPpt,breath/(PTPpt, breath + PTPvent, breath), Pmusc = pressure generated by respiratory muscles