期刊
EUROPEAN JOURNAL OF GASTROENTEROLOGY & HEPATOLOGY
卷 33, 期 3, 页码 388-398出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/MEG.0000000000001735
关键词
African American; Caucasian; Race; Ethnicity; NAFLD; NASH; Fibrosis; APRI; Fib-4; NAS; NFS
This study found that there are clinical, biochemical, and histological differences between African-Americans and Caucasians in NAFLD. Caucasians have a higher rate of NASH and are more likely to develop advanced fibrosis compared to African-Americans.
Background and Aims Racial/ethnic disparities have been reported in the prevalence of nonalcoholic fatty liver disease (NAFLD). Thus, we aimed to understand the inter-ethnic clinical, biochemical, and histological differences in a large cohort of Caucasians and African-Americans (AA). Methods Laboratory and liver biopsy data of 942 NAFLD patients were retrospectively analyzed. Nine hundred seven patients were included in the analysis: 677 (74.6%) Caucasians and 230 (25.3%) AA. Results AA had higher mean BMI compared to Caucasians (42.6 +/- 9.5 vs. 39 +/- 8.6 kg/m(2)). The prevalence of nonalcoholic steatohepatitis (NASH), defined by NAFLD activity score (NAS >= 5), was higher in the Caucasians (n = 67) compared to AA (n = 7) (9.8% vs. 3%, P = 0.0007). One hundred fifteen patients (12.8%) had advanced fibrosis: 109 (16.2%) Caucasians and six (2.6%) AA. No AA patients had stage 4 fibrosis or cirrhosis. Multivariate logistic regression analysis revealed advanced fibrosis was significantly associated with age at liver biopsy (OR 1.03, 95% CI 1.0-1.1, P = 0.017, lower platelet count (OR 0.99, 95% CI 0.98-0.99, P = <0.0001), AST/ALT ratio (OR 5.19, 95% CI 2.9-9.2, P<0.0001) and Caucasian race (OR 7.49, 95% CI 2.53-22.2, P = 0.0003). Advanced fibrosis in AA was predicted by lower platelet count and AST/ALT ratio. Whereas Advanced fibrosis in Caucasians was predicted by age at biopsy, lower platelet count and AST/ALT ratio. Conclusion The AA have a distinct clinical and histologic phenotype. Caucasians have a significantly greater proportion of NASH and are eight times more likely to develop advanced fibrosis than AA. (C) 2020 Wolters Kluwer Health, Inc. All rights reserved.
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