Internal and emergency medicine
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Gastrointestinal bleeding (GIB) is a common cause of emergency department (ED) visits, and has various prognoses. This study aimed to verify the prognostic ability of the lactate/albumin (L/A) ratio in patients with GIB compared with the AIMS65 score and blood urea nitrogen/albumin (B/A) ratio. This retrospective study included patients with GIB symptoms who visited the ED in 2019. ⋯ The multivariate logistic regression analysis revealed that the L/A ratio significantly predicted ICU admission and in-hospital mortality. The AUROC curve for predicting ICU admission were 0.788, 0.695, and 0.586 for the L/A, B/A, and AIMS65 scores, respectively, while the AUROC curve for predicting in-hospital mortality were 0.807, 0.799, and 0.683 for the L/A, B/A, and AIMS65 scores, respectively. The L/A ratio, which consists of the serum lactate and albumin levels, showed superior performance relative to the B/A ratio and AIMS65 score in predicting the prognosis of patients with GIB.