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KMID : 1144420200350010024
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Acute and Critical Care
2020 Volume.35 No. 1 p.24 ~ p.30
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The role of bilirubin to albumin ratio as a predictor for mortality in critically ill patients without existing liver or biliary tract disease
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Choi Ji-Soo
Chung Kyung-Soo
Lee Eun-Hye
Lee Su-Hwan
Lee Sang-Hoon
Kim Song-Yee
Jung Ji-Ye
Kang Young-Ae
Park Moo-Suk
Kim Young-Sam
Chang Joon
Leem Ah-Young
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Abstract
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Background: Hyperbilirubinemia and hypoalbuminemia are frequently appeared and associated with poor prognosis in critically ill patients. We aim to evaluate the association between the bilirubin to albumin ratio and prognosis in intensive care unit (ICU) patients.
Methods: This was a retrospective study of 731 patients who were admitted to the medical intensive care unit (MICU) at a tertiary-care center from July 2015 to September 2017. We analyzed the bilirubin to albumin ratio on admission to the MICU, including clinical characteristics and other examinations.
Results: The overall 28-day survival of MICU patients was 69.1%. On univariate analysis, Acute Physiology and Chronic Health Evaluation (APACHE) II score (P<0.001), Sequential Organ Failure Assessment score (P<0.001), Simplified Acute Physiology Score II score (P<0.001), Creactive protein (P=0.015), and bilirubin/albumin ratio (P<0.001) were associated with mortality of ICU patients. The receiver operating characteristic curves for ICU patients mortality between bilirubin to albumin ratio and APACHE II score were not statistically significant (P=0.282). On multivariate analysis, higher APACHE II score (hazard ratio [HR], 1.05; 95% CI, 1.03 to 1.06; P<0.001) and bilirubin to albumin ratio (HR, 1.65; 95% CI, 1.23 to 2.20; P=0.001) were independently related to the ICU patient mortality.
Conclusions: A higher bilirubin to albumin ratio was related to the unfavorable prognosis and mortality in critically ill patients.
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KEYWORD
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albumin, bilirubin, critically ill, mortality, prognosis
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