Comparative associations of non-alcoholic fatty liver disease and metabolic dysfunction-associated steatotic liver disease with risk of incident chronic kidney disease: a cohort study
- PMID: 39507738
- PMCID: PMC11534778
- DOI: 10.21037/hbsn-23-558
Comparative associations of non-alcoholic fatty liver disease and metabolic dysfunction-associated steatotic liver disease with risk of incident chronic kidney disease: a cohort study
Abstract
Background: We examined the comparative associations between non-alcoholic fatty liver disease (NAFLD) and metabolic dysfunction-associated steatotic liver disease (MASLD) definitions with risk of developing chronic kidney disease (CKD) and abnormal albuminuria.
Methods: We conducted a cohort study of 214,145 Korean adults with normal kidney function at baseline who underwent liver ultrasonography. Participants were further subdivided into no steatotic liver disease (no-SLD), NAFLD-only, MASLD-only, both NAFLD and MASLD, and SLD not categorized as NAFLD or MASLD groups. Cox proportional hazards models were used to analyze the risk of incident CKD and albuminuria.
Results: Compared with either the no-NAFLD or no-MASLD groups, the NAFLD and MASLD groups were associated with a higher risk of incident CKD (NAFLD: adjusted hazard ratio (HR), 1.18 [95% CI, 1.01-1.38]; MASLD: adjusted HR, 1.21 [95% CI, 1.04-1.39]). Among the five subgroups, both NAFLD and MASLD group had the strongest association with risk of incident CKD (adjusted HR, 1.21 [95% CI, 1.04-1.42]). The MASLD-only group had the strongest association with incident abnormal albuminuria, with an adjusted HR comparable to that of the both NAFLD and MASLD group (adjusted HR 1.96 [95% CI, 1.44-2.67] for the MASLD-only, and adjusted HR 1.98 [95% CI, 1.58-2.49] for the both NAFLD and MASLD group versus the no-SLD group). The NAFLD-only group was not independently associated with risk of CKD or abnormal albuminuria.
Conclusions: These findings suggest that MASLD definition identifies individuals at high risk of developing incident CKD or abnormal albuminuria better than NAFLD definition.
Keywords: Metabolic dysregulation; albuminuria; chronic kidney disease (CKD); metabolic syndrome; non-alcoholic fatty liver disease (NAFLD).
2024 AME Publishing Company. All rights reserved.
Conflict of interest statement
Conflicts of Interest: All authors have completed the ICMJE uniform disclosure form (available at https://hbsn.amegroups.com/article/view/10.21037/hbsn-23-558/coif). M.H.Z. serves as an unpaid editorial board member of Hepatobiliary Surgery and Nutrition. G.T. is supported in part by grants from the University School of Medicine of Verona, Verona, Italy. C.D.B. was supported in part by the Southampton National Institute for Health and Care Research Biomedical Research Centre (NIHR203319), UK. The other authors have no conflicts of interest to declare.
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Comment in
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Call a spade a spade.Hepatobiliary Surg Nutr. 2025 Aug 1;14(4):712-715. doi: 10.21037/hbsn-2025-352. Epub 2025 Jul 24. Hepatobiliary Surg Nutr. 2025. PMID: 40893747 Free PMC article. No abstract available.
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Reconciling diagnostic definitions for proposing metabolic dysfunction-associated steatotic liver disease in chronic kidney disease risk.Hepatobiliary Surg Nutr. 2025 Oct 1;14(5):883-888. doi: 10.21037/hbsn-2025-404. Epub 2025 Sep 26. Hepatobiliary Surg Nutr. 2025. PMID: 41104226 Free PMC article. No abstract available.
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