ArticlePloS one2020
Human Papillomavirus (HPV) and the quadrivalent HPV Vaccine among Brazilian adolescents and parents: Factors associated with and divergences in knowledge and acceptance.
Article in PloS one, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
21 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Barriers to HPV Vaccination in Brazil: A Systematic Review.Asian Pacific journal of cancer prevention : APJCP · 2025Pooled it
- Effect of human papillomavirus education on human papillomavirus knowledge and gynecologic cancer awareness among women aged 18-49: a randomized controlled study.Revista da Associacao Medica Brasileira (1992) · 2026Trial
- The mediating role of human papillomavirus concern in the relationship between human papillomavirus knowledge and preventive behaviors against sexually transmitted diseases among Turkish women with higher education.Revista da Associacao Medica Brasileira (1992) · 2026Article
- Vaccine literacy and attitudes toward ımmunization among adults in primary care.Revista da Associacao Medica Brasileira (1992) · 2026Article
- Family physicians' knowledge and attitudes toward rotavirus vaccination in Muğla, Türkiye.Revista da Associacao Medica Brasileira (1992) · 2026Article
- Barriers associated with the parental acceptance of human papillomavirus (HPV) vaccination of minors in Asir, Saudi Arabia: A cross-sectional study.Human vaccines & immunotherapeutics · 2025Article
- School-based HPV vaccination program implementation in municipalities of the São Paulo State, Brazil, from 2015 to 2018.Cadernos de saude publica · 2025Article
- Genital hygiene behaviors in women: a cross-sectional study from Turkey.Revista da Associacao Medica Brasileira (1992) · 2025Article
- The effect of education on adolescents' knowledge of menstrual characteristics and treatment-seeking behavior.Revista da Associacao Medica Brasileira (1992) · 2025Article
- Parental acceptance of human papillomavirus vaccine for female adolescents in Abia State, southeastern Nigeria: a pre-implementation study.The Pan African medical journal · 2025Article
- Identifying behaviors and factors influencing the prevention of sexually transmitted diseases in young adults.Revista da Associacao Medica Brasileira (1992) · 2025Article
- Evaluation of the feasibility of artificial intelligence models as patient information advisors for human papillomavirus vaccines.Revista da Associacao Medica Brasileira (1992) · 2025Article
- Review
- Cancer inequalities in incidence and mortality in the State of São Paulo, Brazil 2001-17.Cancer medicine · 2023Article
- Geographic variations in cancer incidence and mortality in the State of São Paulo, Brazil 2001-17.Cancer epidemiology · 2023Article
- Social inequalities in access to cancer screening and early detection: A population-based study in the city of São Paulo, Brazil.Clinics (Sao Paulo, Brazil) · 2023Article
- Women health: holistic view.Revista da Associacao Medica Brasileira (1992) · 2023Article
- Evaluation of the Knowledge and Attitude of Adolescents Regarding the HPV Infection, HPV Vaccination and Cervical Cancer in a Region from the Northwest of Romania.Patient preference and adherence · 2023Article
- Adolescents' knowledge of HPV and sexually transmitted infections at public high schools in São Paulo: A cross-sectional study.Clinics (Sao Paulo, Brazil) · 2022Article
- Parental Acceptance of Human Papillomavirus (HPV) Vaccination in Districts with High Prevalence of Cervical Cancer in West Java, Indonesia.Patient preference and adherence · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
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.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.