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Updated: Jun 10, 2025

Incorporation of a Survivable Liver Biopsy Procedure in Mice to Assess Non-alcoholic Steatohepatitis NASH Resolution
Published on: April 16, 2019
Disease Progression for Histologic Diagnosis of Metabolic Dysfunction-Associated Steatotic Liver Disease in the
Xinrong Zhang1, Leslie Yeeman Kam1, Scott D Barnett1
1Division of Gastroenterology and Hepatology, School of Medicine, Stanford University Medical Center, Palo Alto, California, USA.
Introduction:
We compared clinical characteristics and outcomes in real-world metabolic dysfunction-associated steatotic liver disease (MASLD) patients with or without liver biopsy using a nationwide cohort in United States (USA) to fill in gaps in selection of biopsy patients.
Methods:
We conducted a retrospective cohort study of adult MASLD patients using Marketscan® Databases (1/2007-12/2021). Patients were categorized into those with or without liver biopsy during follow-up.
Results:
We analyzed 540,326 MASLD patients: 23,732 with and 516,594 without biopsy. Only 4% of MASLD patients received liver biopsy and biopsy rate decreased in the last 5 years (9.4%-3.6%). After 1:5 propensity score matching on baseline characteristics including age, sex, and comorbidities, a total of 23,731 patients with biopsy and 118,396 matched patients without biopsy were analyzed. The incidence per 1,000 person-years for hepatocellular carcinoma (HCC) was 0.22 versus 2.18, cirrhosis 29.75 versus 90.44, and hepatic decompensation 15.84 versus 28.25 compared patients with and without biopsy. In multivariable analysis, patients with biopsy had more than 9 times higher risk of developing HCC, 3 times higher risk of cirrhosis, and 78% higher risk of hepatic decompensation. In subgroup analysis, the association remained consistent when stratified by age (<50 and ≥50), sex, and diabetes mellitus. Predictors of having biopsy included age, metabolic diseases, and living in North central or Northeast of USA.
Conclusion:
These data can inform clinical patient management that biopsy patients likely represent a selected group at higher risk for disease progression, especially in clinical trials for MASLD therapies.
Introduction:
We compared clinical characteristics and outcomes in real-world metabolic dysfunction-associated steatotic liver disease (MASLD) patients with or without liver biopsy using a nationwide cohort in United States (USA) to fill in gaps in selection of biopsy patients.
Methods:
We conducted a retrospective cohort study of adult MASLD patients using Marketscan® Databases (1/2007-12/2021). Patients were categorized into those with or without liver biopsy during follow-up.
Results:
We analyzed 540,326 MASLD patients: 23,732 with and 516,594 without biopsy. Only 4% of MASLD patients received liver biopsy and biopsy rate decreased in the last 5 years (9.4%-3.6%). After 1:5 propensity score matching on baseline characteristics including age, sex, and comorbidities, a total of 23,731 patients with biopsy and 118,396 matched patients without biopsy were analyzed. The incidence per 1,000 person-years for hepatocellular carcinoma (HCC) was 0.22 versus 2.18, cirrhosis 29.75 versus 90.44, and hepatic decompensation 15.84 versus 28.25 compared patients with and without biopsy. In multivariable analysis, patients with biopsy had more than 9 times higher risk of developing HCC, 3 times higher risk of cirrhosis, and 78% higher risk of hepatic decompensation. In subgroup analysis, the association remained consistent when stratified by age (<50 and ≥50), sex, and diabetes mellitus. Predictors of having biopsy included age, metabolic diseases, and living in North central or Northeast of USA.
Conclusion:
These data can inform clinical patient management that biopsy patients likely represent a selected group at higher risk for disease progression, especially in clinical trials for MASLD therapies.

