The diagnosis of NASH requires a liver biopsy; however, actual clinical practice is unknown. In this study, we analyzed a large database of medical claims from 2013 to 2017, which included 7, 368, 327 insured people. The number of people newly diagnosed with NASH was 2, 224. Among these, 153 (6.9%) had received liver biopsies in the three months prior to the new NASH diagnosis. The elderly had a higher rate of liver biopsy implementation. Over the last 5 years, there had been no change in the implementation liver biopsies. According to the findings of this study, it is desirable to develop an alternative method for evaluating liver fibrosis instead of a liver biopsy, which is not performed at the clinical site.
