1. Transient elastography for screening of liver fibrosis: Cost-effectiveness analysis from six prospective cohorts in Europe and Asia.
- Author
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Serra-Burriel M, Graupera I, Torán P, Thiele M, Roulot D, Wai-Sun Wong V, Neil Guha I, Fabrellas N, Arslanow A, Expósito C, Hernández R, Lai-Hung Wong G, Harman D, Darwish Murad S, Krag A, Pera G, Angeli P, Galle P, Aithal GP, Caballeria L, Castera L, Ginès P, and Lammert F
- Subjects
- Asia epidemiology, Cost-Benefit Analysis, Europe epidemiology, Female, Humans, Liver diagnostic imaging, Male, Middle Aged, Risk Assessment methods, Elasticity Imaging Techniques economics, Elasticity Imaging Techniques methods, Elasticity Imaging Techniques statistics & numerical data, Liver Cirrhosis diagnosis, Liver Cirrhosis epidemiology, Liver Cirrhosis etiology, Liver Diseases, Alcoholic complications, Liver Diseases, Alcoholic epidemiology, Mass Screening economics, Mass Screening methods, Non-alcoholic Fatty Liver Disease complications, Non-alcoholic Fatty Liver Disease epidemiology, Primary Health Care economics, Primary Health Care methods
- Abstract
Background & Aims: Non-alcoholic fatty liver disease and alcohol-related liver disease pose an important challenge to current clinical healthcare pathways because of the large number of at-risk patients. Therefore, we aimed to explore the cost-effectiveness of transient elastography (TE) as a screening method to detect liver fibrosis in a primary care pathway., Methods: Cost-effectiveness analysis was performed using real-life individual patient data from 6 independent prospective cohorts (5 from Europe and 1 from Asia). A diagnostic algorithm with conditional inference trees was developed to explore the relationships between liver stiffness, socio-demographics, comorbidities, and hepatic fibrosis, the latter assessed by fibrosis scores (FIB-4, NFS) and liver biopsies in a subset of 352 patients. We compared the incremental cost-effectiveness of a screening strategy against standard of care alongside the numbers needed to screen to diagnose a patient with fibrosis stage ≥F2., Results: The data set encompassed 6,295 participants (mean age 55 ± 12 years, BMI 27 ± 5 kg/m
2 , liver stiffness 5.6 ± 5.0 kPa). A 9.1 kPa TE cut-off provided the best accuracy for the diagnosis of significant fibrosis (≥F2) in general population settings, whereas a threshold of 9.5 kPa was optimal for populations at-risk of alcohol-related liver disease. TE with the proposed cut-offs outperformed fibrosis scores in terms of accuracy. Screening with TE was cost-effective with mean incremental cost-effectiveness ratios ranging from 2,570 €/QALY (95% CI 2,456-2,683) for a population at-risk of alcohol-related liver disease (age ≥45 years) to 6,217 €/QALY (95% CI 5,832-6,601) in the general population. Overall, there was a 12% chance of TE screening being cost saving across countries and populations., Conclusions: Screening for liver fibrosis with TE in primary care is a cost-effective intervention for European and Asian populations and may even be cost saving., Lay Summary: The lack of optimized public health screening strategies for the detection of liver fibrosis in adults without known liver disease presents a major healthcare challenge. Analyses from 6 independent international cohorts, with transient elastography measurements, show that a community-based risk-stratification strategy for alcohol-related and non-alcoholic fatty liver diseases is cost-effective and potentially cost saving for our healthcare systems, as it leads to earlier identification of patients., (Copyright © 2019 European Association for the Study of the Liver. Published by Elsevier B.V. All rights reserved.)- Published
- 2019
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