Table 3.
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