Association Between Albumin Corrected Anion Gap and 28-Day All-Cause Mortality in Patients With Acute Respiratory Failure in ICU: A Retrospective Study Based on the MIMIC-IV Database.

The risk of 28‐day all‐cause mortality was 1.244 times higher in the middle ACAG tertiles compared with the low tertiles (HR 1.244, 95% CI 1.062 ~ 1.457, p < 0.001), and a 1.483‐fold higher risk of mortality was observed in the high ACAG tertiles compared with the low tertiles (HR 1.483, 95% CI 1.244 ~ 1.768, p < 0.001), with a significant trend ( p < 0.001) (Table 2 ).

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