Journal
HEPATOLOGY
Volume 39, Issue 2, Pages 325-332Publisher
WILEY
DOI: 10.1002/hep.20046
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- PHS HHS [A48214] Funding Source: Medline
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Large cohorts of persons infected with hepatitis C virus (HCV) that include patients with multiple risk exposures and behaviors have been rarely reported. We herein describe a population-based cohort of 759 Alaska Natives (AN) with HCV who were recruited into a long-term follow-up study. History of injection drug use (IDU) was reported by 60.1% and blood transfusion by 14.0%. The most common genotype was la (42.0%), followed by 1b (20.3%), 2b (14.7%), 3a (14.3%), and 2a (7.8%). By multivariable analysis, risk exposures (blood transfusion vs. other; P < 0.01; odds ratio [OR], 2.87; 95% confidence interval [CI], 1.51-5.45) and year of infection (P < 0.01; OR, 3.47; 95% CI, 1.34-8.96) were significantly associated with HCV RNA-positivity. Having an RNA concentration greater than or equal to2 million copies/mL was associated with male gender (OR, 1.94) and genotype (P < 0.01 overall; 1 a vs. 3a: OR, 1.92; 2b vs. 3a: OR, 3.17) by multivariable analysis. In conclusion, the two principal risk exposures for AN infected with HCV (IDU and blood transfusion) are the same as the overall U.S. population. Persons with a history of blood transfusion were more likely to be HCV RNA positive than those without such history. Higher RNA levels found in males may explain the more severe disease previously reported in this group.
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