A study on hepatitis B vaccination coverage and HbsAb effective titer in adults of Chaharmahal va Bakhtyari province, 2013

Hepatitis B virus is a major cause of liver inflammation with high worldwide prevalence and important complications. This study was performed to survey vaccination coverage and effective HBsAb titer in this province. In this descriptive analytic study, 3000 adults more than 15 years old were selected by cluster sampling. After receiving their written informed consent and gathering blood samples, some information about demographic status and their vaccination were gathered by questionnaire, and effective HBsAB titers were measured. Mean age of individuals was 38.4±16.3. HBsAb titer mean was 70.88±162 (0-3799). 48.7% individuals had effective titration. Vaccination coverage was complete in 20% and incomplete in 2.6%. 77% individuals, who were related to effective titration, were unvaccinated (P≥0.001). 86% of individuals who were born after 1993-4 and 79% who were born from (1989-1992) had complete coverage with a significant difference in titration. (P≥0.001). Vaccination coverage was higher in male, unmarried persons, but it was equal in rural and urban area. Effective titration had a relationship with marriage status and residential area and it was higher in single and rural persons (P≥0.001). There was a significant relationship between time of the last vaccination reception and effective titration (P≥0.003), but there wasnt any relationship with other factors. It seems vaccination coverage and HBsAb titer in adolescent and young individuals is proper, but it is suggested to use of catch up program for high risk groups to increase vaccination coverage.