Educational status and resources for child care as predictors of TBE vaccination coverage in schoolchildren of an endemic area in Austria.

Since the introduction of the Austrian tick-borne encephalitis (TBE) vaccination program in 1981 vaccination coverage of children has not been investigated sufficiently. Numerous socioeconomic and demographic factors have been identified as being associated with low vaccination coverage in childhood for most vaccinations. This study focuses on parental educational status and on resources for child care as determinants of tick-borne encephalitis (TBE) vaccination coverage of schoolchildren in an endemic TBE area of Austria. The target population were children in the first, fourth and seventh year of school education in Styria, Austria. Therefore, the sample consisting of 2470 children was divided into three age groups, children aged 7, 10 and 13 years. We performed a representative cross-sectional study. The information concerning the vaccination status of each child was recorded by means of an anonymous questionnaire given to the parents by the classroom teachers. This procedure ensured a high overall response rate of 79.8%. The prevalence of at least one TBE vaccination was 93.9% for the 7 year old, 97.8% for the 10 and 97.9% for the 13 year old. The lowest vaccination rates were found in families with four or more children (94.0%) and for those children who had unemployed parents (92.9%). The multivariate analysis indicates that TBE vaccination coverage is affected by a large number of children in the family (p = 0.0003), an urban place of residence (p = 0.0001) and by a low level of education of the mother (p = 0.013). The results suggest that, though overall high coverage in schoolchildren, vaccination programmes should be focused on large and socially deprived families.