Abstract
Ten years after the first seroprevalence study performed in Flanders, the aim of this cross sectional study was to follow the evolution of hepatitis A, B and C prevalence. The prevalence of hepatitis A antibodies, hepatitis B surface antigen and hepatitis C antibodies was measured in oral fluid samples collected by postal survey. Using the National Population Register, an incremental sampling plan was developed to obtain a representative sampling of the general population. A total of 24,000 persons were selected and 6,000 persons among them contacted in a first wave. With 1834 participants a response rate of 30.6% was achieved. The prevalence was weighted for age and was 20.2% (95% CI 19.43–21.08) for hepatitis A, 0.66% (95% CI 0.51–0.84) for hepatitis B surface antigen and 0.12% (95% CI 0.09–0.39) for hepatitis C. The prevalence of hepatitis A and C in the Flemish population is lower in 2003 compared with the results of the study performed in 1993. The difference may be due to a real decrease of the diseases but also to differences in the methodology. The prevalence of hepatitis B surface antigen remains stable. Considering the 30% response rate and the high quality of the self-collected samples as reflect of a good participation of the general population, saliva test for prevalence study is a good epidemiological monitoring tool.
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Abbreviations
- IPH:
-
Scientific Institute of Public Health
- PSU:
-
Primary Sampling Units
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Acknowledgements
This study was funded by the Flemish Community, Belgium. The participating hospitals at the validation part of this study are University of Antwerp (Professor P. Michielsen), University of Ghent (Professor H. Van Vlierberghe) and Catholic University of Louvain (Professor Y. Horsmans).
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Quoilin, S., Hutse, V., Vandenberghe, H. et al. A population-based prevalence study of hepatitis A, B and C virus using oral fluid in Flanders, Belgium. Eur J Epidemiol 22, 195–202 (2007). https://doi.org/10.1007/s10654-007-9105-6
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DOI: https://doi.org/10.1007/s10654-007-9105-6