• Journal of hepatology · Dec 2017

    Development of chronic kidney disease in patients with non-alcoholic fatty liver disease: A cohort study.

    • Dong Hyun Sinn, Danbee Kang, Hye Ryoun Jang, Seonhye Gu, Soo Jin Cho, PaikSeung WoonSWDepartment of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea., Seungho Ryu, Yoosoo Chang, Mariana Lazo, Eliseo Guallar, Juhee Cho, and Geum-Youn Gwak.
    • Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea.
    • J. Hepatol. 2017 Dec 1; 67 (6): 1274-1280.

    Background & AimsNon-alcoholic fatty liver disease (NAFLD) has been associated with chronic kidney disease (CKD), but cohort studies are limited. We investigated the longitudinal association of NAFLD and its severity with the development of CKD.MethodsWe performed a retrospective cohort study of 41,430 adult men and women (average age, 48.9y) without CKD at baseline who underwent repeated health check-up examinations from January 1, 2003, through December 31, 2013. NAFLD status was assessed by ultrasonography, and NAFLD severity was assessed by the NAFLD fibrosis score (NFS).ResultsThe outcome was an incident CKD, defined as an estimated glomerular filtration rate less than 60ml/min/1.73m2. During 200,790 person-years of follow-up (median follow-up of 4.15years), we identified 691 incident CKD cases. The multivariable-adjusted hazard ratio for CKD comparing participants with and without NAFLD was 1.22 (95% confidence interval [CI] 1.04-1.43). The risk of CKD increased progressively with increased NAFLD severity. The multivariable-adjusted hazard ratios for CKD comparing participants with NFS <-1.455 and those with NFS ≥-1.455 to participants without NAFLD were 1.09 (95% CI 0.91-1.32) and 1.58 (95% CI 1.30-1.92), respectively. The association was consistent across clinically relevant subgroups.ConclusionIn a large cohort of adult men and women without CKD, NAFLD was associated with an increased risk of CKD development. NAFLD may adversely affect renal function and patients may need to be carefully monitored for an increased risk of CKD.Lay SummaryThe presence of fatty liver is associated with the future decline of renal function. Thus, fatty liver patients need to be monitored regularly for renal function.Copyright © 2017 European Association for the Study of the Liver. Published by Elsevier B.V. All rights reserved.

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