Association between blood urea nitrogen to serum albumin ratio and in-hospital mortality in critical patients with diabetic ketoacidosis: a retrospective analysis of the eICU database.

Furthermore, a significant trend across increasing BAR quartiles was observed for in-hospital mortality (P for trend <0.001 in unadjusted model; P for trend = 0.001 in Model 1 and Model 2).

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The third quartile (Q3, 6.28≤BAR<11.58) also demonstrated a significant association with in-hospital mortality in the unadjusted model (HR, 3.75; 95% CI, 1.3–10.86; P=0.015) but did not reach statistical significance in Model 1 and Model 2.

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