Factors Related to Vaccination History of Mumps in One-year-old Children

Abstract

To clarify the factors related to the vaccination history of mumps in 1-year-old children, a self-administered questionnaire survey was conducted on 367 people accompanied by 2-year-old children who visited one hospital in the Kanto region. The questionnaire consisted of items related to “history of mumps vaccination”, “demographics of the children”, “demographics of the parents”, “knowledge and experience of the mumps vaccination in parents”, “socio-economic problems of the parents”, “views on health and a healthy lifestyle held by the parents”, and “living environment”. Of the 154 cases with valid responses, 125 were vaccinated and 29 were unvaccinated. Multiple logistic regression analysis showed that following children are at higher risk of not becoming vaccinated against mumps at the age of one: the main caregivers were other than the mother, the caregiver having no history of vaccination for rotavirus, later birth order, having parents who lack knowledge about mumps vaccination, and who hold the idea that children will be immunized through natural infections rather than being vaccinated against mumps. The findings suggest the necessity to create measures to improve the mumps vaccination rates focusing on these matters.