Clin Mol Hepatol.
2025 Feb;31(Suppl):S32-S50. 10.3350/cmh.2024.0431.
Epidemiology of metabolic dysfunction-associated steatotic liver disease
- Younossi ZM
1,2,3 - Kalligeros M4
- Henry L1,2,3
- Affiliations
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- 1The Global NASH Council, Washington DC, USA
- 2Beatty Liver and Obesity Program, Inova Health System, Falls Church, VA, USA
- 3Center for Outcomes Research in Liver Disease, Washington DC, USA
- 4Beth Israel Deaconess Medical Center, Harvard University, Cambridge, MA, USA
- KMID: 2565370
- DOI: http://doi.org/10.3350/cmh.2024.0431
Abstract
- As the rates of obesity and type 2 diabetes (T2D) continue to increase globally, so does the prevalence of metabolic dysfunction–associated steatotic liver disease (MASLD). Currently, 38% of all adults and 7–14% of children and adolescents have MASLD. By 2040, the MASLD prevalence rate for adults is projected to increase to more than 55%. Although MASLD does not always develop into progressive liver disease, it has become the top indication for liver transplant in the United States for women and those with hepatocellular carcinoma (HCC). Nonetheless, the most common cause of mortality among patients with MASLD remains cardiovascular disease. In addition to liver outcomes (cirrhosis and HCC), MASLD is associated with an increased risk of developing de novo T2D, chronic kidney disease, sarcopenia, and extrahepatic cancers. Furthermore, MASLD is associated with decreased health-related quality of life, decreased work productivity, fatigue, increased healthcare resource utilization, and a substantial economic burden. Similar to other metabolic diseases, lifestyle interventions such as a heathy diet and increased physical activity remain the cornerstone of managing these patients. Although several obesity and T2D drugs are available to treat co-morbid disease, resmetirom is the only MASH-targeted medication for patients with stage 2–3 fibrosis that has approved by the Food and Drug Administration for use in the United States. This review discusses MASLD epidemiology and its related risk factors and outcomes and demonstrates that without further global initiatives, MASLD incidence could continue to increase.
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