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

Vaccine Hesitancy among European Parents-Psychological and Social Factors Influencing the Decision to Vaccinate against HPV: A Systematic Review and Meta-Analysis

BACKGROUND

Due to low adherence to HPV vaccination programs, the European region struggles with vaccination rates lower than 30% among the targeted population. The present report investigated various socio-demographic and psychological factors influencing European parents' hesitancy towards vaccinating their children.

METHODS

As of September 2023, four databases were searched. After applying inclusion criteria, all articles comparing psychological and socio-demographic factors in parents who vaccinate or do not vaccinate their children were included.

RESULTS

Twenty-five primary publications met the criteria, totaling 385,460 responders, of which 311,803 want to or have already vaccinated their child, and 73,555 do not wish to do so. Immigrant and employment status, religion, age of parents and the child's gender seemed to influence their decision to vaccinate their child. Previous experience with vaccines, perceived safety and efficacy and the mother's previous abnormal CCS results also impacted their decision. The caregivers' education, gender, civil status, number of children, family history of neoplasia or mother's CCS attendance did not influence their hesitancy to vaccine.

CONCLUSION

Multiple demographic, social, economic and psychological barriers involved in the parents' hesitancy to vaccinate their children against the HPV virus were highlighted. Specific at-risk categories that need to be targeted with information, education and vaccination campaigns were identified.

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

Purpose

In Romania, after reaching the age of 18, teenage girls can make an informed decision about vaccination. The aim of the study was to evaluate both knowledge and attitudes related to HPV infection, HPV vaccination, cervical cancer, as well as intentions, reservations, reasons that could influence the decision related to vaccination.

Patients and Methods

We applied an anonymized questionnaire to 690 teenage girls in the 18-19 age group, recruited from 15 high schools in Bihor County. Based on the answers to the question corresponding to item 14 of subscale 3, 2 groups were identified: the group with a hesitant behavior called the non-vaccine group (GNV) and the group with a positive behavior called the pro-vaccine group (GPV). The statistical analysis was processed by using IBM-SPSS 22.

Results

The analysis revealed significant differences between the groups in terms of the level of knowledge and attitudes related to vaccination, the adolescent girls in the GPV being more aware of the role and importance of HPV vaccination and more open to the idea of vaccination. For the GNV, the behavior can be explained by the fact that even if they have heard about the HPV infection being transmitted through unprotected sex and they think that vaccination in general is necessary to prevent certain diseases, they do not know if HPV vaccination would be effective in protecting them in the future. Adolescents from GPV declare they would accept HPV vaccination if it would be offered to them or they are already vaccinated.

Conclusion

Alongside interventions targeting parents and health-care professionals, it is necessary to improve the level of knowledge of adolescents about HPV infection, HPV vaccination and cervical cancer, by organizing information campaigns in schools, campaigns in which professionals in the field should be involved, but also by implementing education programs addressed to them.

Geographic variations in cancer incidence and mortality in the State of São Paulo, Brazil 2001-17

BACKGROUND

Cancer is a leading cause of morbidity and mortality in Brazil and the burden is rising. To better inform tailored cancer actions, we compare incidence and mortality profiles according to small areas in the capital and northeast region of the State of São Paulo for the leading cancer types.

METHODS

New cancer cases were obtained from cancer registries covering the department of Barretos (2003-2017) and the municipality of São Paulo (2001-2015). Cancer deaths for the same period were obtained from a Brazilian public government database. Age-standardized rates per 100,000 persons-years by cancer and sex are presented as thematic maps, by municipality for Barretos region, and by district for São Paulo.

RESULTS

Prostate and breast cancer were the leading forms of cancer incidence in Barretos, with lung cancer leading in terms of cancer mortality in both regions. The highest incidence and mortality rates were seen in municipalities from the northeast of Barretos region in both sexes, while elevated incidence rates were mainly found in São Paulo districts with high and very high socioeconomic status (SES), with mortality rates more dispersed. Breast cancer incidence rates in São Paulo were 30 % higher than Barretos, notably in high and very high SES districts, while corresponding rates of cervical cancer conveyed the opposite profile, with elevated rates in low and medium SES districts.

CONCLUSIONS

There is substantial diversity in the cancer profiles in the two regions, by cancer type and sex, with a clear relation between the cancer incidence and mortality patterns observed at the district level and corresponding SES in the capital.

Cancer inequalities in incidence and mortality in the State of São Paulo, Brazil 2001-17

BACKGROUND

Cancer disparities exist between and within countries; we sought to compare cancer-specific incidence and mortality according to area-level socioeconomic status (SES) in the State of São Paulo, Brazil.

METHODS

Cancer cases diagnosed 2003-2017 in the Barretos region and 2001-2015 in the municipality of São Paulo were obtained from the respective cancer registries. Corresponding cancer deaths were obtained from a Brazilian public government database. Age-standardized rates for all cancer combined and the six most common cancers were calculated by SES quartiles.

RESULTS

There were 14,628 cancer cases and 7513 cancer deaths in Barretos, and 472,712 corresponding cases and 194,705 deaths in São Paulo. A clear SES-cancer gradient was seen in São Paulo, with rates varying from 188.4 to 333.1 in low to high SES areas, respectively. There was a lesser social gradient for mortality, with rates in low to high SES areas ranging from 86.4 to 98.0 in Barretos, and from 99.2 to 100.1 in São Paulo. The magnitude of the incidence rates rose markedly with increasing SES in São Paulo city for colorectal, lung, female breast, and prostate cancer. Conversely, both cervical cancer incidence and mortality rose with lower levels of SES in both regions.

CONCLUSIONS

A clear SES association was seen for cancers of the prostate, female breast, colorectum, and lung for São Paulo. This study offers a better understanding of the cancer incidence and mortality profile according to SES within a highly populated Brazilian state.

Opiniões de idosos acerca da vacina anticovid e sua possível recusa

Objetivo: conhecer as opiniões de idosos acerca da vacina anticovid e sua possível recusa. Metodologia: trata-se de estudo exploratório e qualitativo, realizado em um município de pequeno porte, do extremo Norte de Mato Grosso, Brasil. A coleta de dados ocorreu em março de 2021, por meio de entrevista semiestruturada. Para a análise dos dados, utilizou-se o software ATLAS.ti®. Resultados: a maioria dos idosos demonstrou aceitação e desejo em ser imunizada, porém aqueles com baixa escolaridade apresentaram maior rejeição à vacina, os quais foram percebidos pelos demais idosos como irresponsáveis. Os participantes mencionam que todos possuem o direito de escolha. Conclusões: apesar de os idosos terem opinado positivamente sobre a vacina, ações educativas, principalmente junto àqueles com baixa escolaridade, devem ser intensificadas, a fim de que o comportamento de recusa, caso prevaleça mesmo após diálogos e esclarecimentos, não influencie terceiros e coloque em risco a saúde da comunidade.

Social inequalities in access to cancer screening and early detection: A population-based study in the city of São Paulo, Brazil

OBJECTIVE

This study monitors trends in access to cancer screening, focusing on mammography, Papanicolaou (Pap smear), and Prostate-Specific Antigen (PSA), assessing the magnitude of inequality in the city of São Paulo from 2003 to 2015 according to education level.

METHOD

This is a cross-sectional population-based study conducted with data from the 2003, 2008, and 2015 editions of the Health Survey of the City of São Paulo (ISA-Capital). Outcome variables were the proportion of mammography, Papanicolaou (Pap smear), and Prostate-Specific Antigen (PSA) tests according to the protocols. Inequality was measured by education level according to years of study. For static analysis, Poisson regression was used to estimate proportion ratios.

RESULTS

The proportion of Pap smears remained stationary at a high level (>89%) throughout the study period, while access to mammography and PSA tests significantly increased in the 2003‒2015 period. The present results indicate inequalities in access to cancer screening due to education, and being more expressive for mammography and PSA tests. However, this inequality significantly decreased over the period analyzed comparing the most educated individuals with those with the lowest educational level. In addition, an increase in the proportion of tests performed in the Brazilian Unified Health System was identified, especially for mammography and PSA tests, in the period 2003‒2015.

CONCLUSIONS

The inequalities observed in the access to preventive exams were influenced by the level of education. The offer of exams was expanded, more significantly for mammography and PSA, especially among the less educated group.

A story-telling cloth approach to motivating cervical cancer screening in Mali

Ninety percent of deaths from Cervical cancer (CC) caused by Human Papilloma Virus (HPV) occur in low- and middle-income countries. CC is the 2nd most common cause of cancer in women in West Africa, where 12,000 women develop cervical cancer and more than 6,000 die from the disease, annually. While HPV vaccination and CC screening have dramatically reduced the incidence of CC and mortality from CC in developed countries, prevention of CC in West Africa is often limited to visual inspection of the cervix and surgical intervention. In previous studies of CC in Mali, we demonstrated that knowledge about the link between HPV and CC is limited, and that screening for CC is often delayed until women are symptomatic. For this intervention, a story-telling cloth (West African-style printed pagne) was designed for use as a starting point for educational sessions run by community health workers. Community outreach using the cloth during 6 months of 2015 resulted in a 5-fold higher uptake of cervical cancer screening and increased awareness of the potential to vaccinate adolescents against CC. 3,271 women were motivated to visit one of five participating clinics for CC screening, where a mere 600 women had been screened during the previous year. This study shows that a comprehensive, visual, community-centered education campaign coupled with coordinated support for local clinics improves uptake of CC screening.

Cervical Cancer Prevention on Instagram: Content and Social Interaction Analysis of Brazilian Accounts

OBJECTIVE

The aim of the present study was to analyse the content of posts on Instagram about cervical cancer.

METHODS

It was conducted a qualitative analysis using the 50 most popular publicly available Portuguese-language Instagram posts, containing the hashtags #cervicalcancer, #papsmear, #hpv, #papillomavirus, and #hpvvac-cine, during the Brazilian national cervical cancer prevention campaign in March 2018.

RESULTS

Posts recruited using #cervicalcancer provided 60% of posts with contents related to secondary prevention; the #papsmear provided 46% of posts with irrelevant contents; the #hpv and #papillomavirus provided 50% and 64% of posts with informative content, respectively; and the #hpvvaccine provided 58% of posts with content related to primary prevention. The posts that received the highest number of likes were those from the hashtags #hpv and #papillomavirus with 151.33 and 78.00 likes/post, respectively. The majority of posts presented less than 05 comments/post, except for the #hpv, which had 64.76 comments/post. According to the users' profiles, the majority of the posts, regardless of the hashtag used, were made by health professionals.

CONCLUSION

The focus of Instagram posts about cervical cancer is on secondary prevention, which can contribute to the promotion of health behaviours not directed to aspects of primary prevention of the disease.

Parental Acceptance of Human Papillomavirus (HPV) Vaccination in Districts with High Prevalence of Cervical Cancer in West Java, Indonesia

BACKGROUND

Cervical cancer is the second-highest cause of death in women with cancer, which is mostly caused by human papillomavirus (HPV) infection, specifically HPV 16 and 18. Next to Pap smear and visual inspection with acetic acid, HPV vaccination is highly recommended to support preventive measures.

OBJECTIVE

This study aimed to determine parental acceptance of HPV vaccination in districts with high prevalence of cervical cancer and different levels of household income in West Java, Indonesia by taking several factors into account.

METHODS

A questionnaire was delivered to 286 parents who met the major inclusion criteria of having daughters at 5th or 6th grade of elementary schools in three selected districts: Bandung, Purwakarta and Karawang. In particular, logistic regression analysis was applied to investigate the correlation of acceptance towards HPV vaccination with sociodemographic factors.

RESULTS

Respondents in Bandung, Purwakarta and Karawang were willing to pay for HPV vaccine at a price range of US$ 1.38-20.69, US$ 0.07-34.48, and US$ 1.38-6.90, respectively. In addition, respondents' spouse was the key person influencing their decision to vaccinate their children.

CONCLUSION

Education level and health beliefs toward cervical cancer have significant correlation (p-value <0.05) with acceptance towards HPV vaccination.

Adolescents' knowledge of HPV and sexually transmitted infections at public high schools in São Paulo: A cross-sectional study

PURPOSE

To assess the knowledge of students from public high schools in poor communities about HPV and Sexually Transmitted Infections and their attitude towards and prevention of such diseases.

PATIENTS AND METHODS

Cross-sectional study with adolescents from public schools of São Paulo - Brazil. Participants were selected for an interview by a randomization program. A questionnaire about knowledge, attitudes, and preventive practices regarding STIs, including HPV, according to sex was administered and answers were analyzed by the Poisson regression model with robust variance.

RESULTS

Median age of the 269 participants was 16 years. The majority was of African descent (68.8%, n = 185), most (74%, n = 199) were religious and the vast majority (90.7%, n = 244) lived with their parents. The Poisson regression revealed statistically significant sex-related differences regarding the following questions: "Do you know how it is prevented?" (PR = 1.12 [1.03‒1.23], p = 0.007); "Have you ever been concerned with HPV?" (PR = 1.10 [1.02‒1.19], p = 0.011); "Have you ever sought health care due to concerns about HPV?" (PR = 1.09 [1.04‒1.14], p < 0.001); "Do you know what a Pap Smear is?" (PR = 1.24 [1.13‒1.36], p < 0.001); "Do you know what the cervix is?" (PR = 1.23 [1.13‒1.34], p < 0.001); "Do you know what cervical cancer is?" (PR = 1.13 [1.04‒1.22], p = 0.004).

CONCLUSIONS

The present results show that adolescents from public schools in poor communities in São Paulo City know little about HPV and cervical cancer. Male adolescents know less than female adolescents and are less concerned with health care.