Diagnosis of hepatitis C virus infection in Scotland's injecting drug user population

We estimated the extent of undiagnosed hepatitis C virus (HCV) infection in injecting drug users (IDUs) in Scotland. We used record-linkage to determine HCV diagnosis status for 41 062 current/former IDUs attending drug treatment and support services between 1 April 1995 and 31 March 2006; the exten...

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Veröffentlicht in:Epidemiology and infection 2010-03, Vol.138 (3), p.393-402
Hauptverfasser: McDONALD, S. A., HUTCHINSON, S. J., MILLS, P. R., BIRD, S. M., ROBERTSON, C., DILLON, J. F., SPRINGBETT, A., GOLDBERG, D. J.
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Sprache:eng
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Zusammenfassung:We estimated the extent of undiagnosed hepatitis C virus (HCV) infection in injecting drug users (IDUs) in Scotland. We used record-linkage to determine HCV diagnosis status for 41 062 current/former IDUs attending drug treatment and support services between 1 April 1995 and 31 March 2006; the extent of undiagnosed HCV infection was estimated by comparing the number HCV-diagnosed to the number HCV-infected (estimated from an unlinked anonymous testing survey of 2141 current/former IDUs). In all, 9145 IDUs (22%) were diagnosed HCV antibody-positive since first attendance at drug services (diagnosis rate of 33·6/1000 person-years, 95% CI 32·7–34·4). By 31 March 2006, of the 19 632 current/former IDUs who had attended drug services and were determined to be living with HCV, an estimated 58% (95% CI 45–62) had not been HCV-diagnosed. It is essential that the deployment of resources for identifying at-risk IDUs with a view to offering antiviral therapy is guided by evidence.
ISSN:0950-2688
1469-4409
DOI:10.1017/S0950268809990616