Indiana Parental Perceptions of the Acceptability of General and HPV-Specific State Vaccine Requirements

State vaccine requirements are a tool for improving child and adolescent vaccination immunization coverage, but to be effective, parental buy-in is needed. The objective of this study was to assess the demographic, healthcare characteristics, and health beliefs associated with parental acceptance of general and HPV-specific state vaccine requirements. Indiana parents (N = 601) with children ages 11-17 years old completed a survey during March 2020.Results showed that 47.2% and 43.1% of parents believed there should always be general and HPV-specific state vaccine requirements, respectively. In multivariable analysis, higher odds of parental support for general state vaccine requirements were associated with being unsure whether HPV-associated cancer is a problem in the participant's county and having higher perceived benefits of HPV vaccines. Lower odds were associated with private insurance, having less than a bachelor's degree, and having less confidence in vaccines. In comparison, parents had higher odds of agreeing with HPV-specific state vaccine requirements if they reported higher interpersonal altruism and higher perceived benefits of HPV vaccines; they had lower odds if they were non-Hispanic White. Findings indicate that while similar percentages of parents agreed with general and HPV-specific state vaccine requirements, there were different characteristics associated with acceptance of each. Results can inform the development of tailored interventions for improving parental support for general and HPV-specific state vaccine requirements.