Group-level analyses: HCV prevalence and incidence, by survey.

<p>CI = confidence interval; PWID = people who inject drugs.</p>a<p>Numerator includes anti-HCV positives and weak reactives; the denominator is all PWID.</p>b<p>Recent infection is defined as anti-HCV negative and HCV-RNA positive; the denominator is all anti-HCV negative PWID.</p>c<p>Among those who reported injecting in the last 6 months.