• Xinyu Sheng, Wenyi Chen, Yanping Xu, Feiyan Lin, and Hongcui Cao.
• State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; National Clinical Research Center for Infectious Diseases, Hangzhou, China.
• Am. J. Med. Sci. 2022 Jan 1; 363 (1): 25-32.

BackgroundHepatorenal syndrome (HRS) is a severe complication of decompensated cirrhosis with high mortality. However, few prognostic factors have been identified and studies are urgently needed to facilitate precise treatment.MethodsPatients with decompensated cirrhosis and acute kidney injury were enrolled from four general hospitals between January 2010 and March 2020. Demographic and laboratory data were compared between surviving and non-surviving patients and also among different levels of HRS severity. COX regression analysis was performed to determine the effect of mean corpuscular hemoglobin concentration (MCHC) on survival of patients with HRS.ResultsOut of a total of 1287 patients enrolled, 325 patients were analyzed. MCHC was significantly higher in non-survivors than in survivors, and in patients with more serious disease, defined as failure of organ systems. The hazard ratio (HR) of mortality was 1.17, 1.18 and 1.11, when adjusted by the crude model, model 1 and model 2, respectively. When MCHC was converted to a categorical variable based on the quartile of MCHC, the HR for the highest quartile of MCHC was 2.11 (95% CI: 1.45-3.06, P <0.05) compared to the lowest quartile of MCHC in the crude model, and when adjusted for age and sex (model 1), the HR was 2.20 (95% CI: 1.52-3.20, P <0.05). In model 2, which was adjusted for complex characteristics, the HR was 1.77 (95% CI: 1.17-2.68, P <0.05). The results of Kaplan-Meier curves were consistent with those from Cox regression analysis.ConclusionsHigher MCHC was associated with worse prognosis in HRS.Copyright © 2021 Southern Society for Clinical Investigation. Published by Elsevier Inc. All rights reserved.

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