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Prevalence and risk factors for significant liver fibrosis among HIV-monoinfected patients.

Abstract：

BACKGROUND:HIV-monoinfected patients may be at risk for significant liver fibrosis, but its prevalence and determinants in these patients are unknown. Since HIV-monoinfected patients do not routinely undergo liver biopsy, we evaluated the prevalence and risk factors of significant hepatic fibrosis in this group using the aspartate aminotransferase (AST)-to-platelet ratio index (APRI). METHODS:We conducted a cross-sectional study among HIV-infected patients negative for hepatitis B surface antigen and hepatitis C antibody in the Penn Center for AIDS Research Adult/Adolescent Database. Clinical and laboratory data were collected from the database at enrollment. Hypothesized determinants of significant fibrosis were modifiable risk factors associated with liver disease progression, hepatic fibrosis, or hepatotoxicity, including immune dysfunction (i.e., CD4 T lymphocyte count <200 cells/mm(3), HIV viremia), diseases associated with hepatic steatosis (e.g., obesity, diabetes mellitus), and use of antiretroviral therapy. The primary outcome was an APRI score >1.5, which suggests significant hepatic fibrosis. Multivariable logistic regression identified independent risk factors for significant fibrosis by APRI. RESULTS:Among 432 HIV-monoinfected patients enrolled in the CFAR Database between November 1999 and May 2008, significant fibrosis by APRI was identified in 36 (8.3%; 95% CI, 5.9-11.4%) patients. After controlling for all other hypothesized risk factors as well as active alcohol use and site, detectable HIV viremia (adjusted OR, 2.56; 95% CI, 1.02-8.87) and diabetes mellitus (adjusted OR, 3.15; 95% CI, 1.12-10.10) remained associated with significant fibrosis by APRI. CONCLUSIONS:Significant fibrosis by APRI score was found in 8% of HIV-monoinfected patients. Detectable HIV viremia and diabetes mellitus were associated with significant fibrosis. Future studies should explore mechanisms for fibrosis in HIV-monoinfected patients.

journal_name

BMC Infect Dis

journal_title

BMC infectious diseases

authors

DallaPiazza M,Amorosa VK,Localio R,Kostman JR,Lo Re V 3rd

doi

10.1186/1471-2334-10-116

subject

Has Abstract

pub_date

2010-05-13 00:00:00

pages

116

issn

1471-2334

pii

1471-2334-10-116

journal_volume

pub_type

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Prevalence and risk factors for significant liver fibrosis among HIV-monoinfected patients.