Impact of the COVID-19 Pandemic on Human Papillomavirus Vaccination in Brazil

et al. 2022

Resumo Objetivo: analisar a associação entre os fatores do ambiente social e as taxas de cobertura da vacina contra o papilomavírus humano (HPV) nos adolescentes do estado de Minas Gerais. Método: estudo epidemiológico, ecológico, com análise em painel e de tendência, no período de 2016 a 2020. A população foi composta por adolescentes de 9 a 13 anos. As variáveis ambientais foram as taxas de cobertura; o índice de desenvolvimento humano municipal, de renda, de educação e de longevidade; e a taxa de violência. Utilizou-se o modelo autorregressivo de Prais-Winsten, o cálculo da variação percentual média anual e a regressão em painel. Resultados: as taxas de cobertura da vacina em todas as regiões analisadas estão abaixo das metas preconizadas pelo Ministério da Saúde. Ademais, tais taxas estão associadas aos fatores relacionados à aplicação da primeira dose e a aspectos inerentes ao ambiente social, como a taxa de violência. Conclusão: as evidências encontradas demonstraram que, embora tênues, aspectos do ambiente, além das características individuais, fornecem informações relevantes para compreensão da ocorrência dos desfechos de saúde, uma vez que para essa vacina temos a forte influência do ambiente e da idade como fatores associados à baixa taxa de vacinação.

Section: Resultsunclassified

Fatores ambientais associados à cobertura da vacina contra o papilomavírus humano em adolescentes: análise de 2016 a 2020

Luvisaro

et al. 2022

“…Studies show that the COVID-19 pandemic had a significant influence on public health and that HPV vaccine coverage was also affected 20 . However, this reality is not exclusive to this vaccine, but it is one shared with other regular vaccines 20 - 23 .…”

Section: Discussionmentioning

confidence: 99%

Environmental factors associated with human papillomavirus vaccine coverage in adolescents: 2016-2020 analysis

Luvisaro

et al. 2022

Objective: to analyze the association between the factors of the social environment and the coverage rates of the human papillomavirus (HPV) vaccine in adolescents, in the State of Minas Gerais, Brazil. Method: this is an epidemiological, ecological study, with panel and trend analysis from 2016 to 2020. The population consisted of adolescents aged 9 to 13 years. The environmental variables were coverage rates, the municipal index of human development, income, education, and longevity; and the rate of violence. The Prais-Winsten autoregression and the panel regression model were used, in addition to the estimate of the mean annual percentage variation. Results: the vaccination coverage rates are below the goals recommended by the Ministry of Health for all regions analyzed. Moreover, these rates are associated with factors related to the application of the first dose and to aspects inherent to the social environment, such as the rate of violence. Conclusion: our findings showed that, although tenuous, aspects of the environment, in addition to individual characteristics, provide relevant information to understand the occurrence of health outcomes, since this vaccination campaign presents a strong influence of the environment and age as factors associated with the low rates.

“…In our study, the North and Northeast regions had the highest prevalence of adolescents not vaccinated against human papillomavirus in the country. During the COVID-19 pandemic, the North and Northeast regions of Brazil also showed a reduction in the number of doses applied for HPV vaccine, contributing to the increase in the number of adolescents of both sexes who did not have access to primary prevention of cervical cancer in these regions (30) . In this sense, health strategies and policies are necessary to increase the support of the adolescent public living in these regions, especially in the Northeast, which has, in addition to the worst indicators of immunization against HPV (19) , the higher prevalence of cervical cancer and other neoplasms caused by the virus (24) .…”

Section: Discussionmentioning

confidence: 99%

Vaccination against human papillomavirus in Brazilian schoolchildren: National Survey of School Health, 2019

Sá

Prates

et al. 2022

Self Cite

Objective: to analyze the prevalence of schoolchildren vaccinated against human papillomavirus (HPV) and the reasons related to non-vaccination. Method: cross-sectional study, with data from the 2019 National Survey of School Health. The sample consisted of 160,721 students aged 13 to 17 years. The prevalence and confidence intervals (95%CI) of vaccinated adolescents were estimated according to location, sex, and administrative dependence of the school. The differences between the strata were evaluated with the Chi-square test. Adjusted prevalence ratios (aPR) and 95%CI were estimated with the Poisson regression model. Results: most of the students were vaccinated (62.9%), and the prevalence of girls (76.1%) was higher than that of boys (49.1%). The most prevalent reason for not vaccinating was “did not know they had to take” (46.8%), with the highest aPR in public schoolchildren in Brazil (1.6; 95%CI 1.5;1.7), from the Northeast region (1.2; 95%CI 1.1;1.2), and in students from private schools in the Northeast regions (1.1; 95%CI 1.1;1.2) and North (1.3; 95%CI 1.2;1.4). Conclusion: one out of every two Brazilian schoolchildren was vaccinated against HPV. Misinformation was a recurring reason for non-vaccination. The North and Northeast regions had the highest prevalence of non-vaccinated people, observed mainly in adolescents from public schools.