Timeliness of Early Childhood Vaccinations and Undervaccination Patterns in Montana.

ABSTRACT:

Introduction

Early childhood vaccination rates are lower in rural areas than those in urban areas of the U.S. This study's objective is to quantify vaccine timeliness and the prevalence of undervaccination patterns in Montana and to measure the associations between timeliness and series completion by age 24 months.

Methods

Using records from January 2015 to November 2019 in Montana's centralized immunization information system, days undervaccinated were calculated for the combined 7-vaccine series. Undervaccination patterns indicative of certain barriers to vaccination, including parental vaccine hesitancy, were identified. Using multivariable log-linked binomial regression, the association between timing of vaccine delay and not completing the combined 7-vaccine series by a

SUBMITTER: Newcomer SR 

PROVIDER: S-EPMC8217328 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature