International Journal of Drug Policy
Volume 21, Issue 3 , Pages 247-250, May 2010

The reach of a free hepatitis B vaccination programme: Results of a Dutch study among drug users

  • Jessica E. Baars

      Affiliations

    • IVO, Addiction Research Institute, Rotterdam, The Netherlands
    • Department of Public Health, Erasmus MC, University Medical Centre, Rotterdam, The Netherlands
    • Corresponding Author InformationCorresponding author at: IVO, Addiction Research Institute, Heemraadssingel 194, 3021 DM, Rotterdam, The Netherlands. Tel.: +31 10 425 33 66; fax: +31 10 276 39 88.
    • ,
  • Brigitte J.F. Boon

      Affiliations

    • IVO, Addiction Research Institute, Rotterdam, The Netherlands
    • ,
  • Henk F.L. Garretsen

      Affiliations

    • Department Tranzo, Faculty of Behavioural and Social Science, University of Tilburg, Tilburg, The Netherlands
    • ,
  • Dike van de Mheen

      Affiliations

    • IVO, Addiction Research Institute, Rotterdam, The Netherlands
    • Department of Public Health, Erasmus MC, University Medical Centre, Rotterdam, The Netherlands

Received 26 February 2009; received in revised form 10 June 2009; accepted 9 July 2009. published online 25 August 2009.

Abstract 

Background

The objective of the study was to explore the reach of an ongoing hepatitis B vaccination programme in terms of awareness of the programme among drug users (DUs), vaccination uptake and compliance, as well as to investigate reasons for non-participation.

Methods

Ethnographic mapping and targeted sampling were used to recruit 309 DUs in three regions in the Netherlands. Results were based on univariate statistics (Chi-square and t-tests) and multivariate logistic regression analysis.

Results

Of the sample, 63% were aware of the free vaccine, and 44% said they had been vaccinated. DUs who visited drug consumption rooms were more likely to be aware of the programme than those who did not. Vaccination uptake was negatively associated with older age of onset of drug use. Uptake was positively associated with being informed personally about the free vaccination by drug service staff. A history of STD infection, and having sexual intercourse with casual partners were negatively associated with compliance with the vaccination schedule (receiving three vaccinations).

Conclusion

Our results suggest that marginalised DUs have been reached by the programme. Attention should be paid to those at risk of hepatitis B infection through sexual contacts, since they are less likely to be fully vaccinated. Most importantly, our results suggest that immediate vaccination on location after personal communication is one of the most effective ways to increase vaccination uptake.

Keywords: Hepatitis B, Vaccination, Drug users, Demographic and behavioural factors

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PII: S0955-3959(09)00108-X

doi:10.1016/j.drugpo.2009.07.001

International Journal of Drug Policy
Volume 21, Issue 3 , Pages 247-250, May 2010

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