County-Level Factors Associated With HPV Vaccine Coverage Among 11-Year-Olds to 12-Year-Olds Living in Florida in 2019



      In the United States, human papillomavirus (HPV) vaccine initiation and up-to-date (UTD) status are associated with multiple factors at the individual level such as racial/cultural (e.g., race, immigration status), socioeconomic status (e.g., living below poverty level, education), and healthcare access (e.g., insurance status/type). HPV vaccination rates differ dramatically by US geographic areas and within states. To tailor interventions to local areas, it is important to understand county-level characteristics associated with HPV vaccination rates.


      Using linear regression, we assessed the association between county-level HPV vaccination initiation and UTD rates for 11-year-olds to 12-year-olds in Florida (collected from the Florida SHOTS immunization registry) and county-level variables. Factors found significant in bivariate analysis and with a variance influence factors <4 were included in multivariable models.


      In 2019, county-level HPV vaccine coverage among Florida 11-year-olds to 12-year-olds ranged from 31% to 92% initiation and 3%–36% UTD. Counties with the lowest HPV vaccine coverage were concentrated in Florida's North-Central and Panhandle regions. In multivariable models, counties with primarily rural populations had lower vaccination initiation and UTD coverage. Above and beyond the association with rurality, UTD coverage was associated with family physicians per 100,000 residents and uninsured or Medicaid-enrolled populations.


      While Florida county-level HPV vaccine initiation rates among 11-year-olds to 12-year-olds varied by county in 2019, UTD rates remained universally low despite recommendations. Tailoring interventions toward healthcare access in rural communities may increase HPV vaccine coverage.


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