Predicting Outcomes for Interhospital Transferred Patients of Emergency General Surgery

Table 4

Multivariable logistic regression using forward selection with α = 0.10 measuring association of clinical factors with mortality. Only variables that were statistically significant were reported.

Variables	Multivariable regression
	OR	95% CI		VIF
Primary outcome: Mortality^†
Unit—ICU	2.95	1.36–6.41	0.006	1.36
Procedure type—laparotomy	1.96	1.04–3.70	0.039	1.12
Total SOFA score—each point^¶	1.22	1.13–1.32	<0.001	1.40
Age—each year	1.07	1.05–1.10	<0.001	1.17
PMHx—DM	0.46	0.22–0.96	0.038	1.03
Diagnosis—GI bleeding	0.20	0.05–0.79	0.021	1.05

^¶Higher score indicates more severe disease. Goodness-of-fit test: ^†Hosmer–Lemeshow Test. Degrees of freedom: 8, χ²: 2.82, . CI: confidence interval; DM: diabetes mellitus; GI: gastrointestinal; ICU: intensive care unit; OR: odds ratio; PMHx: past medical history; SOFA: Sequential Organ Failure Assessment; and VIF: variance inflation factor.