Fast Five Quiz: Nonalcoholic Steatohepatitis (NASH)

B.S. Anand, MD


May 11, 2020

Figure 1. Computer-generated image of liver disease stages.

More than 80% of people who are extremely obese have NAFLD. In addition, more than half of all patients who undergo bariatric surgery have NASH. Fatty liver is a problem that can affect people of any age group, including children and adolescents; however, the severity of fibrosis may be predicted by older age. Initial studies of NAFLD reported that as many as 75% of patients were female, although subsequent studies have reported that males made up closer to 50% of people with NAFLD.

Cases of fatty liver have been found in all races of people, but NAFLD is most common in white persons, and more research has been conducted in this population than any other. NAFLD is currently the most common liver disease in the world. Its prevalence is rising rapidly due in large part to the increasing obesity epidemic.

Learn more about the epidemiology of NAFLD and NASH.


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