• Plos One · Jan 2020

    Human Papillomavirus (HPV) and the quadrivalent HPV Vaccine among Brazilian adolescents and parents: Factors associated with and divergences in knowledge and acceptance.

    • Jéssica Menezes Gomes, Beatriz Machado Silva, Edige Felipe de Sousa Santos, Patricia Jane Kelly, Annielson de Souza Costa, Albertina Duarte Takiuti, Luiz Carlos de Abreu, José Maria Soares Júnior, Edmund Chada Baracat, and Isabel Cristina Esposito Sorpreso.
    • Disciplina de Ginecologia, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil.
    • Plos One. 2020 Jan 1; 15 (11): e0241674.

    BackgroundLow national immunization coverage (44.64%) requires strengthening the vaccination campaign to improve knowledge about HPV and its vaccine among adolescents and parents/guardians. Our aim is to evaluate factors related to knowledge about HPV, its vaccine, acceptability and divergences among Brazilian adolescents and parents/guardians.MethodsA cross-sectional study was performed at a health unit of Sao Paulo University, Brazil, from 2015 to 2016. The convenience sample comprised 1047 individuals, including 74% (n = 776) adolescents and 26% (n = 271) parents/guardians, who answered a survey (knowledge about HPV, its vaccine, barriers and acceptability).ResultsThe main source of information for adolescents was school (39%, n = 298); for parents/guardians, it was health professionals (55%, n = 153). Parents/guardians were 2.48 times more likely than adolescents to know that HPV caused changes in the Pap smear test [RR 2.48, 95% CI 2.03-3.01 (p < 0.001)], 1.43 times likely to be aware that HPV was a sexually transmitted infection [RR 1.43, 95% CI 1.22-1.68 (p < 0.001)], and 2.77 times likely to be informed that the HPV vaccine decreased the chance of having genital warts [RR 2.77, 95% CI 2.22-2.47 (p < 0.001)]. Girls knew more about the topic than boys (RR 1.67; 95% CI 1.10-2.60); education increased parents' knowledge [(RR 3.38; 95% CI 1.71-6.69)].ConclusionFemale adolescents and parents/guardians with a higher level of education are factors related to suitable knowledge about HPV and its vaccine among Brazilian respondents. There were differences between parents/guardians and adolescents in HPV awareness, clinical implications, vaccine knowledge and vaccine acceptance.

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