Table 5.

The estimated correlation between different outcomes and gastrointestinal group

Logistic regression			P	Linear regression			P
Outcome		OR (95% CI)		Outcome		B coefficient (95% CI)
Model 1				Model 1
Discharge		2.03 (1.20-3.19)	0.002	Hospitalization duration (days)		−0.11 (−0.8-00.62)	0.768
Death		0.56 (0.37-0.87)	0.009
ICU admission		0.60 (0.43-0.84)	0.003
Model 2				Model 2
Discharge		1.72 (1.07-2.7)	0.023	Hospitalization duration (days)		0.20 (−0.5-0.94)	0.596
Death		0.67 (0.43-1.05)	0.087
ICU admission		0.69 (0.49-0.97)	0.036
Model 3				Model 3
Discharge		1.80 (1.08-3.02)	0.024	Hospitalization duration (days)		0.21 (−0.50-0.92)	0.559
Death		0.66 (0.40-1.07)	0.095
ICU admission		0.63 (0.42-0.92)	0.020
Model 4				Model 4
Discharge		1.7 (1.0-2.87)	0.046	Hospitalization duration (days)		0.19 (−0.52-0.90)	0.601
Death		0.69 (0.42-1.14)	0.153
ICU admission		0.63 (0.42-0.93)	0.021

Model 1=No adjusted variables; Model 2=Model adjusted by sex and age; Model 3=Model adjusted by sex, age, and SaO₂; Model 4=Model adjusted by for sex, age, SaO₂, and significant comorbidities; OR=Odds ratio; CI=Confidence interval; ICU=Intensive care unit; SaO₂=Oxygen saturation