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This study was conducted to assess the accuracy of self-reported hepatitis C virus (HCV) antibody (anti-HCV) serostatus in injection drug users (IDUs), and examine whether self-reported anti-HCV serostatus was associated with recent injection risk behavior.

In five U.S. cities (Baltimore, Chicago, Los Angeles, New York, and Seattle), 3,004 IDUs from 15 to 30 years old were recruited for a baseline interview to determine eligibility for a randomized controlled trial of a behavioral intervention. HIV and HCV antibody testing were performed, and subject data (e.g., demographics, drug and sexual risk behavior, and history of HIV and HCV testing) were collected via audio computer-administered self-interview. Risk behavior during the previous three months was compared to self-reported anti-HCV serostatus.

Anti-HCV prevalence in this sample of young IDUs was 34.1%. Seventy-two percent of …