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Incidence of hepatocellular carcinoma in untreated subjects with chronic hepatitis B: a systematic review and meta-analysis
Elena Raffetti1,*, Giovanna Fattovich2 andFrancesco Donato1
DOI: 10.1111/liv.13142
This article is protected by copyright. All rights reserved.
Issue
Cover image for Vol. 36 Issue 5
Liver International
Accepted Article (Accepted, unedited articles published online and citable. The final edited and typeset version of record will appear in future.)
Article has an altmetric score of 2
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This article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as doi: 10.1111/liv.13142
Keywords:
hepatitis B;hepatocellular carcinoma;meta-analysis;liver
Abstract
Background and Aims
In the natural history of hepatitis B virus (HBV) chronic infection the hepatocellular carcinoma (HCC) risk is unclear. We assessed incidence and predictors of hepatocellular carcinoma by a systematic review and meta-analysis .
Methods
We included longitudinal studies and randomized controlled trials assessing hepatocellular carcinoma incidence in untreated patients with HBV chronic infection. Incidence rates and their 95% confidence intervals were extracted by each study and pooled together in random effects models.
Results
Sixty six studies were included with a total of 347 859 patients. According to liver disease status, the summary incidence rates were in Europe, North America and East Asia, respectively: a) asymptomatic carriers: 0.07 (95% confidence interval: 0.05-0.09), 0.19 (0.07-0.31) and 0.42 (0.21-0.63) per 100 person-years, respectively; b) inactive carriers: 0.03 (0.0-0.10), 0.17 (0.02-0.62) and 0.06 (0.02-0.10), respectively; c) chronic hepatitis: 0.12 (0.0-0.27), 0.48 (0.22-0.91) and 0.49 (0.32-0.66), respectively; d) compensated cirrhosis (Child-Pugh A): 2.03 (1.30-2.77), 2.89 (1.23-4.55) and 3.37 (2.48-4.26), respectively. Multivariate meta-regression showed a significant increase of incidence rates for age, and for status of symptomatic carrier, chronic hepatitis and compensated cirrhosis compared to inactive carrier, but not for geographical area after adjusting for age. An increase of the incidence rates was also observed for alcohol intake ≥60 g/dl, HBV genotype C with respect to B and HBV-DNA serum levels > 2000 IU/ml, in Asian studies.
Conclusions
HCC risk in untreated subjects with HBV chronic infection is strongly related with age and liver disease status.
This article is protected by copyright. All rights reserved.
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