Journal
JOURNAL OF HEPATOLOGY
Volume 51, Issue 2, Pages 371-379Publisher
ELSEVIER
DOI: 10.1016/j.jhep.2009.03.019
Keywords
Fatty liver; Steatohepatitis; Fibrosis; Cirrhosis; Inflammation
Categories
Funding
- NIDDK NIH HHS [P30 DK067629] Funding Source: Medline
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Background/Aims: Non-alcoholic steatohepatitis (NASH) is a growing public health problem. Evaluation of risk factors for fibrosis in NASH will help to target resources to reduce development of cirrhosis. This study had two aims; the first to compile longitudinal histological data to characterize the natural history of fibrosis progression in NASH, and second, to identify predictive factors for progression to advanced fibrosis (stage 3 or greater) in NASH. Methods: Subjects had to have a histological diagnosis compatible with NASH on their initial biopsy, received no intervention of proven histological benefit, and undergone two liver biopsies with at least an interval of one year between them. Results: Ten studies were selected comprising 221 patients. 37.6%,, had progressive fibrosis over a mean follow-up interval of 5.3 years (SD, 4.2 years, median, 3.7 years, range 1.0-21.3 years). Proportional hazards regression analysis demonstrated that age (HR = 0.98, p = 0.009) and inflammation on initial biopsy (any inflammation, HR = 2.5, p = 0.001; grade 1, HR = 2.5, p = 0.001; grade 2, HR = 2.4, p = 0.003) are independent predictors of progression to advanced fibrosis. Other traditional parameters (e.g. obesity, diabetes, hypertension) were not statistically significant predictors. Conclusions: Presence of inflammation on the initial biopsy and age are independent predictors of progression to advanced fibrosis in patients with NASH. (C) 2009 European Association for the Study of the Liver. Published by Elsevier B.V. All rights reserved.
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