Associations of geographic-based socioeconomic factors and HPV vaccination among male and female children in five US states.

"Declarations Ethics approval and consent to participateThe study received ethical approval from the Institutional Review Board (IRB) at Washington University in St. Louis. Prior to participation, all participants provided informed consent. We affirm that all methods adhered to IRB guidelines and regulations. Consent for publicationNot applicable. Competing interestsThe authors declare no competing interests. Competing interests The authors declare no competing interests."

"Funding This study was supported by the National Cancer Institute of the National Institutes of Health [grant numbers 3P30CA091842-19S4 and P50CA244431], Siteman Cancer Center and St. Jude Children’s Research Hospital including the American Lebanese Syrian Associated Charities. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health."