Table 2.

Linear regression model for LOS and ICU–LOS compared to ERAS and pre-ERAS groups

	Adjusted difference (95% CI)	p value
Model 1 variables: ERAS
ICU–LOS	− 1.09 (− 2.13 to − 0.05)	0.04
LOS	− 6.89 (− 4.11 to − 9.67)	< 0.001
Model 2 variables: ERAS, age, sex
ICU–LOS	− 1.15 (− 0.11 to − 2.18)	0.03
LOS	− 6.83 (− 4.04 to − 9.62)	< 0.001
Model 3 variables: ERAS, age, sex, stage, ACE-27 score
ICU–LOS	− 0.93 (0.19 to − 2.05)	0.10
LOS	− 6.59 (− 3.47 to − 9.71)	< 0.001

CI, confidence interval; ICU–LOS, intensive care unit-length of stay; LOS, length of stay; ACE-27 score, Adult Comorbidity Evaluation 27