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Norah Palmateer, Sharon Hutchinson, Avril Taylor, Elizabeth Allen, Syed Ahmed and David Goldberg

Trends in injecting risk behaviour and HCV prevalence among injecting drug users in Glasgow, 1999-2007. Norah Palmateer, Sharon Hutchinson, Avril Taylor, Elizabeth Allen, Syed Ahmed and David Goldberg. SDF Seminar, 27 th March 2009. Overview. Why Glasgow Historical HCV data

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Norah Palmateer, Sharon Hutchinson, Avril Taylor, Elizabeth Allen, Syed Ahmed and David Goldberg

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  1. Trends in injecting risk behaviour and HCV prevalence among injecting drug users in Glasgow, 1999-2007 Norah Palmateer, Sharon Hutchinson, Avril Taylor, Elizabeth Allen, Syed Ahmed and David Goldberg SDF Seminar, 27th March 2009

  2. Overview • Why Glasgow • Historical HCV data • Current trends in injecting and HCV (1999-2007)

  3. Prevalence of current injecting drug use in Scotland (2003) Greater Glasgow (1%) (Hay et al., 2005)

  4. Prevalence of HCV among current IDUs in Scotland (1999-2000)

  5. HCV prevalence among recent onset IDUs (aged <25 years) who had a named HIV test in Scotland 100 Glasgow Lothian 80 Tayside Grampian 60 Prevalence (%) 40 20 0 1990 1992 1994 1996 1998 2000 Year tested

  6. Incidence of HCV among IDUs in Glasgow

  7. Current trends, 1999-2007 • Data • Size of population at risk • Prevalence of injecting risk behaviour • Prevalence of HCV infection • Data sources • Drug treatment agency reports • Community-wide surveys • Capture-recapture studies • Surveillance programme (unlinked anonymous)

  8. Size of injecting population 7,200 (6,100-8,600) 4,900 (4,400-5,500) (Hay et al., 2005)

  9. Risk behaviours – injecting at least daily (last 6 months) (Community-wide surveys)

  10. Risk behaviours – sharing needles/syringes (previous month) (Drug Misuse Statistics Scotland, ISD)

  11. Risk behaviours – sharing needles/syringes and other injecting paraphernalia (previous month) (Drug Misuse Statistics Scotland, ISD)

  12. HCV prevalence among IDUs aged <25, Glasgow (n=181) (n=41) (n=162) (n=36) IDUs aged <25 (UAT) IDUs injecting 5 yrs or less (community surveys)

  13. Incidence of HCV among IDUs in Glasgow

  14. Numbers of HCV-infected current IDU aged <25, Glasgow

  15. Summary and limitations • Collated data to present an overall picture • Limitations • HCV incidence estimates • Self-reported injecting risk behaviour • Some evidence that the frequency of injection has declined • Unclear evidence relating to injecting risk • No evidence that the rate of new HCV infections in declining…but evidence for a decline in the absolute number of HCV infections

  16. What next… • Hepatitis C Action Plan • Major investment in HCV prevention services…will this have an impact? • Continued monitoring • Needle Exchange Surveillance Initiative (NESI) • HCV prevalence/incidence • Injecting risk behaviour • Unlinked Anonymous HCV testing • HCV prevalence

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