Association of estimated liver fibrosis with carotid but not femoral atherosclerotic burden: the ILERVAS cohort

Introduction: Advanced liver fibrosis, a key complication of metabolic dysfunction-associated steatotic liver disease, has been increasingly linked to extrahepatic conditions, including type 2 diabetes, obesity, and cardiovascular disease. However, the specific association of liver fibrosis in the development and progression of subclinical atheromatous disease across vascular territories remains poorly understood. This study evaluates the utility of two non-invasive indices to predict liver fibrosis and their associations with subclinical atheromatous plaque burden and distribution. Methods: Atheromatous plaque burden (plaque presence, number, and total area) was assessed in the carotid and femoral territories via ultrasonography in 3,981 middle-aged participants without known cardiovascular disease, diabetes, or liver disease from the ILERVAS cohort (ClinicalTrials.gov Identifier: NCT03228459). The fibrosis-4 (FIB-4) and the NAFLD Fibrosis Score (NFS) were evaluated. FIB-4 risk categories were defined as low (2.67). Results: Participants in the intermediate and high-risk FIB-4 categories exhibited a higher prevalence of carotid atheromatous disease (56.8% vs. 49.5%, p