Table 4.

Results of Linear Regression Analysis

Variable	Coefficient	95% CI	P-Value
Univariate*
LAS	0.009†	0.001–0.017	0.03
Multivariable†
LAS	−0.002	−0.009–0.004	0.4
ICU before LTx	0.23	0.00–0.46	0.05
Duration of mechanical ventilation, hrs	0.001	0.001–0.003	0.006
Tracheostomy	0.61	0.36–0.84	<0.001
Renal Replacement Therapy	0.41	0.11–0.69	<0.006
In-hospital infection	0.11	−0.04–0.26	0.2
In-hospital mortality	−0.19	−0.48–0.09	0.2

^*P-value based on univariate Cox proportional hazards analysis

^†P-value based on multivariable Cox proportional hazards regression. The final model incorporated the following covariates: LAS, ICU before LTX, duration of mechanical ventilation, tracheostomy, renal replacement therapy. In-hospital infection, and in-hospital mortality