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. 2019 Jul 2;9:78. doi: 10.1186/s13613-019-0549-0

Table 3.

Estimates of fixed effects

Dependent variable Parameter β SE Beta t p value
∆WOBimp Baseline WOBimp 0.085 0.087 0.097 0.979 0.330
ETT size − 0.030 0.022 − 0.310 − 1.379 0.171
Tinsp 0.069 0.123 0.086 0.561 0.576
PIFR* 0.013 0.005 0.434 2.520 0.013
VTe 0.018 0.010 0.191 0.085 0.085

The difference in imposed work of breathing between CPAP/PS and CPAP (∆WOBimp) was stated as dependent variable. The measured WOBimp during CPAP/PS was noted as baseline WOBimp. The effect of baseline WOBimp, endotracheal tube size (ETT size), inspiratory time (Tinsp), peak inspiratory flow rate (PIFR) and expired tidal volume (VTe) on ∆WOBimp was studied

A p value of < 0.05 (*) was denoted as statistically significant

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