Relationship of Admission Serum Anion Gap and Prognosis of Critically Ill Patients: A Large Multicenter Cohort Study

Table 5

The association between serum AG and hospital mortality in external cohort.

Models
	OR (95% CI)		OR (95% CI)		OR (95% CI)
Model 1	1.934 (0.797-4.694)	0.145	1(ref)		1.671 (1.097-2.546)	0.017
Model 2	1.898 (0.780-4.620)	0.158	1(ref)		1.717 (1.126-2.619)	0.012
Model 3	2.041 (0.808-5.154)	0.131	1(ref)		1.667 (1.065-2.607)	0.025

Model 1: unadjusted; model 2: adjusted for age and gender; model 3: adjusted for age, gender, heart failure, respiratory failure, renal failure, liver diseases, coagulopathy, sepsis, trauma, shock, hypertension, and diabetes mellitus; AG, anion gap; CI, confidence interval; ICU, intensive care unit; OR, odds ratio.