Interventions to increase uptake of Human Papillomavirus (HPV) vaccination in minority populations: A systematic review

Content validation of a Facebook HPV vaccination promotion intervention (#HPVvaxtalks) created for young Black adults (18-26 years old)

BACKGROUND

Despite the expansion in human papillomavirus (HPV) vaccination recommendations, vaccine uptake and completion remain low among Black individuals. An 8-week Facebook intervention (#HPVvaxtalks) was developed to increase knowledge and awareness of HPV risk factors, risk perceptions, and vaccination intention and uptake. This article details the formative phase of experts' feedback and participants' satisfaction on the components of the #HPVvaxtalks for content useability, acceptability, relevance, and visual appeal to inform further refinements.

METHOD

A convenience sample of 5 experts and 13 young Black adults were invited to provide feedback on #HPVvaxtalks intervention content. The experts reviewed and provided feedback via a survey and open-ended questions. After incorporating suggestions from experts' feedback, 13 participants viewed #HPVvaxtalks posts, took part in a virtual focus group, and completed a survey. Qualitative data were thematically analyzed and integrated with survey results.

RESULTS

Experts and participants mean age were 41.9 ± 2.3 and 21.2 ± 1.9 years, respectively. Experts and participants reported positive ratings for intervention posts, including useability, acceptability, relevance, and visual appeal. Data provided areas for improvements of #HPVvaxtalks.    CONCLUSION: Experts indicated strong content validity and participants showed satisfaction with #HPVvaxtalks content. Ensuring acceptability, relevance, and appeal of the intervention for the target population is an integral part of intervention development.

Interventions to increase vaccination in vulnerable groups: rapid overview of reviews

OBJECTIVE

Groups which are marginalised, disadvantaged or otherwise vulnerable have lower uptake of vaccinations. This differential has been amplified in COVID-19 vaccination compared to (e.g.) influenza vaccination. This overview assessed the effectiveness of interventions to increase vaccination in underserved, minority or vulnerable groups.

METHODS

In November 2022 we searched four databases for systematic reviews that included RCTs evaluating any intervention to increase vaccination in underserved, minority or vulnerable groups; our primary outcome was vaccination. We used rapid review methods to screen, extract data and assess risk of bias in identified reviews. We undertook narrative synthesis using an approach modified from SWiM guidance. We categorised interventions as being high, medium or low intensity, and as targeting vaccine demand, access, or providers.

RESULTS

We included 23 systematic reviews, including studies in high and low or middle income countries, focused on children, adolescents and adults. Groups were vulnerable based on socioeconomic status, minority ethnicity, migrant/refugee status, age, location or LGBTQ identity. Pregnancy/maternity sometimes intersected with vulnerabilities. Evidence supported interventions including: home visits to communicate/educate and to vaccinate, and facilitator visits to practices (high intensity); telephone calls to communicate/educate, remind/book appointments (medium intensity); letters, postcards or text messages to communicate/educate, remind/book appointments and reminder/recall interventions for practices (low intensity). Many studies used multiple interventions or components.

CONCLUSION

There was considerable evidence supporting the effectiveness of communication in person, by phone or in writing to increase vaccination. Both high and low intensity interventions targeting providers showed effectiveness. Limited evidence assessed additional clinics or targeted services for increasing access; only home visits had higher confidence evidence showing effectiveness. There was no evidence for interventions for some communities, such as religious minorities which may intersect with gaps in evidence for additional services. None of the evidence related to COVID-19 vaccination where inequalities of outcome are exacerbated.

PROSPERO REGISTRATION

CRD42021293355.

Implementing interventions to start HPV vaccination at age 9: Using the evidence we have

Human papillomavirus (HPV) vaccination is routinely recommended for adolescents aged 11 or 12 years but can begin at age 9. On-time HPV vaccination by the thirteenth birthday has proven to be effective in preventing HPV cancer and pre-cancer. However, HPV coverage rates continue to lag behind other routinely recommended vaccinations for adolescents. A promising approach to improving coverage is to start HPV vaccination at age 9. This approach has been endorsed by the American Academy of Pediatrics and the American Cancer Society. Benefits of this approach include increased time to complete vaccination series by the thirteenth birthday, additional spacing of recommended vaccines, and a more concentrated focus on cancer prevention messaging. While promising, little is known about how and if existing evidence-based interventions and approaches can be used to promote starting HPV vaccination at age 9. Implementation science frameworks offer scientific direction in how to adapt current and develop new interventions to promote starting HPV vaccination at age 9 and accelerate dissemination and prevent HPV cancers.

Perspectives of HPV vaccination among young adults: a qualitative systematic review and evidence synthesis protocol

INTRODUCTION

Human papillomavirus (HPV) is the causative agent of nearly all cervical cancers. Despite the proven safety and efficacy of HPV vaccines in preventing HPV-related cancers, the global vaccine coverage rate is estimated to only be 15%. HPV vaccine coverage rates are more actively tracked and reported for adolescents 17 years and younger but there is still a critical window of opportunity to intervene and promote HPV vaccination among young adults aged 18-26 years who are still eligible to be vaccinated. This protocol for a qualitative evidence synthesis aims to review perspectives of HPV vaccination among young adults (18-26 years) and identify facilitators and barriers that influence HPV vaccination uptake and decision-making.

METHODS AND ANALYSIS

Seven databases will be searched from 1 January 2006 to the date of final search. For inclusion, studies must report HPV vaccination perspectives of young adults aged 18-26 years and use qualitative study methods or analysis techniques. Studies will be screened in a two-stage process guided by the eligibility criteria. Final included studies will be evaluated for methodological strengths and limitations using the Critical Appraisal Skills Programme quality assessment tool for qualitative studies. After data extraction, framework analysis will be used to analyse the data applying the socioecological model. Finally, the Grading of Recommendations Assessment, Development and Evaluation - Confidence in the Evidence from Reviews of Qualitative research will be applied to evaluate the confidence in synthesised qualitative findings. The methodology of this review follows the Cochrane Handbook guidelines on qualitative evidence syntheses.

ETHICS AND DISSEMINATION

Formal ethical approval is not required for this study. Findings will be disseminated through peer-reviewed publications, conference presentations and professional networks.

PROSPERO REGISTRATION NUMBER

CRD42023417052.

Factors affecting HPV vaccine uptake among ethnic minority adolescent girls: A systematic review and meta-analysis

Objective

Human papillomavirus (HPV) vaccination rates remain low among adolescent girls across ethnic minority groups that experience high incidences of HPV-related cervical cancer with poor outcomes. This systematic review aimed to synthesize the available evidence on the factors affecting HPV vaccination among ethnic minority adolescent girls.

Methods

Six databases (PubMed, OVID MEDLINE, EMBASE, CINAHL, PsycINFO, and Scopus) were searched from inception to October 17, 2022. Guided by the conceptual model of vaccine hesitancy, the factors affecting HPV vaccine uptake were descriptively synthesized and analyzed using meta-analyses.

Results

This review included 14 studies. The pooled uptake rate of at least one dose of HPV vaccine among ethnic minority adolescent girls was only 38% (95% confidence interval ​= ​0.22, 0.39). At individual level, age of adolescent girls, knowledge of HPV, perceived importance of HPV vaccination, and perceived risk of HPV infection promoted the vaccine uptake. Beliefs in conspiracy theories and lack of trust in the government and HPV vaccine discouraged the utilization. At social and policy levels, health professionals' recommendations, subjective norms, sexuality-related communication, and vaccine policies such as insurance coverage facilitated HPV vaccination. The religious and moral convictions regarding abstinence from sex until marriage negatively influenced the vaccine acceptance.

Conclusions

HPV vaccination among ethnic minority adolescent girls was influenced by multi-level factors that highlighted a combined effort, including culturally sensitive health education programmes, sexuality-related communication skills training, collaboration with religious organizations, debunking conspiracy theories in HPV vaccine, and promoting school-based vaccination programs, to increase the coverage.

Systematic review registration

PROSPERO, CRD42022366805.

Integrated Health Maintenance Reminders for Improved HPV Vaccine Administration: Toward Improvements in Completion Disparities

OBJECTIVE

To evaluate the effect of a health maintenance reminder (HMR) on human papillomavirus (HPV) vaccine administration and completion across different age, insurance, and race cohorts.

STUDY DESIGN

Retrospective pre-post analysis.

SETTING

Academic primary care.

METHODS

Patients aged 9 to 26 who had initiated the HPV vaccine series from 2016 to 2021 were analyzed, based on current age-based standards. The cohort was divided based on vaccine uptake before and after the implementation of the HMR program in February 2020. The multivariate analysis estimated the odds of vaccine completion based on sociodemographic factors, and variable interactions were investigated to determine independent associations between sociodemographic factors and HMR implementation.

RESULTS

There were 7654 individual patients (mean age was 15.8 years; 46.7 were males; and 50.7% were white). HPV vaccine completion rates increased post-HMR implementation by 59.2% (37% pre-, and 58.9% post-HMR; p < .001) in the entire cohort. Overall, black patients (adjusted odds ratio [aOR] = 0.68; 95% confidence interval [CI]: 0.60, 0.70) and patients ≥18 years (aOR = 0.13; 95% CI: 0.11, 0.15) were significantly less likely to complete their vaccine series; however, this improved significantly following HMR in these groups (p < .001). Post-HMR, race, and insurance status were not independently associated with disparate vaccine completion rates, however, age was, and patients ≤14 or younger had higher odds of vaccine completion (aOR = 3.54; 95% CI: 2.91, 4.32).

CONCLUSION

The implementation of an HMR was associated with increased HPV vaccine uptake across age and race groups in this single-institution study. Future research should explore barriers to implementing HMRs in different health care settings.

Using World Cafés to engage an Australian culturally and linguistically diverse community around human papillomavirus vaccination

INTRODUCTION

Internationally, cultural factors are associated with vaccine uptake and completion in ethnic minority communities. Whilst Australia has achieved high human papillomavirus (HPV) vaccination, little is known about how culture or ethnicity influences HPV vaccination engagement. To address these gaps, we partnered with our Local Health District to explore how one culturally and linguistically diverse (CALD) community engages with school and HPV vaccination.

METHODS

We adapted a participatory research method (the World Café) to engage one local CALD community-the Macedonian community (Our bi-cultural researcher and participants preferred the term 'Macedonia' rather than The Republic of North Macedonia as outlined in the 2018 Prespa agreement) in New South Wales (Australia)-to discuss HPV and school vaccination. Our qualitative analysis combined deductive codes taken from the Tailoring Immunization Programme framework, inductive codes guided by narrative inquiry (temporality, sociality and place) and previously known vaccination 'trust' frameworks.

RESULTS

In late 2019, 31 local Macedonian community members were purposely recruited for two World Cafés (n = 15 mothers/grandmothers and n = 16 young adults). Our themes reveal a community narrative grounded in historical vaccine experiences, family views on vaccination and a general trust in schools. Participants collectively discussed how 'increasing knowledge' and 'tailoring health communications' could strengthen community vaccine decision-making.

CONCLUSION

This study demonstrates how research partnerships and participatory methods can be applied in CALD community settings to research engagement with school and HPV vaccination. Our World Café dialogues highlight a positive narrative about vaccines, where community vaccination behaviours were built on multilayer trust relationships despite low vaccine knowledge. Our findings further knowledge around 'public trust' in school vaccination, highlighting the importance of existing (or missing) trust relationships when tailoring vaccine communication to local CALD communities.

PATIENT OR PUBLIC CONTRIBUTION

Participants who took part in the World Cafes were all local Macedonian community parents or young adults who have been or will be exposed to the health services offered by school-based HPV vaccination. Thus, all the data collected came from their personal experiences with the school vaccination programme, or how they expect to participate in the programme. To ensure our study design was culturally appropriate and tailored to the Macedonian community, we engaged with the relevant local health stakeholders (the bi-cultural Multicultural Health Officer and Multicultural Health Service Manager Programme Director) to adapt and refine the World Café method for this context and setting. Our local health stakeholders also reviewed our preliminary findings, assisted with data interpretation and participated in manuscript editing.

'Vaccinate my village' strategy in Malawi: an effort to boost COVID-19 vaccination

OBJECTIVES

To boost COVID-19 vaccine uptake, an innovative 'vaccinate my village' (VMV) strategy using door-to-door vaccination by Health Surveillance Assistants (HSA) was adopted. In this study, we assessed the impact of the 'vaccinate my village' strategy on COVID-19 vaccine uptake.

METHODS

This was a cross-sectional review of the data on COVID-19 vaccination obtained from the Ministry of Health, Malawi, from 11 March 2021 to September 2022.

RESULTS

From March 2021-4 September 2022,091,551 COVID-19 vaccine doses were administered, out of which 2,253,546 were administered over just six months as a part of VMV as compared to 1,838,005 doses were administered over 13 months as a part of other strategies. The proportion of Malawi's population receiving at least one dose of the COVID-19 vaccine increased substantially from 4.66 to 15.4 with the implementation of the VMV strategy (p = 0.0001). District-wise coverage of the COVID-19 vaccine also increased significantly after its implementation (p = 0.0001).

CONCLUSIONS

Door-to-door vaccination involving HSAs benefitted the COVID-19 vaccination program in Malawi by ensuring accessibility, availability, and acceptability.

Implementation and evaluation of a multilevel intervention to increase uptake of the human papillomavirus vaccine among rural adolescents

PURPOSE

Geographic disparities exist in uptake of the human papillomavirus vaccine (HPV). In 2020, the National Immunization Survey-Teen reported that adolescents living in nonmetropolitan statistical areas (MSAs) had lower HPV vaccination coverage (≥ 1 dose) compared to adolescents living in MSA principal cities. This paper describes the implementation and evaluation of a multilevel pilot intervention study to increase uptake of the HPV vaccine among adolescent patients ages 11-17 of a rural health clinic.

METHODS

This parent, primary care team, and clinic multilevel pilot intervention was guided by evidence-based approaches to increase HPV vaccinations, formative research, and input from the community. HPV vaccination initiation and completion rates were analyzed at baseline and 23 months follow-up.

FINDINGS

The proportion of adolescent patients ages 11-17 who had initiated the HPV vaccine series was significantly greater at follow-up compared to baseline, (82.7% compared to 52.4%), χ2 (1, n = 498) = 49.2, P < .0001. The proportion of adolescent patients ages 11-17 who had completed the HPV vaccine series was also significantly greater at follow-up compared to baseline, (58.0% compared to 27.0%), χ2 (1, n = 498) = 50.8, P < .0001.

CONCLUSIONS

The multilevel intervention significantly increased HPV initiation and completion rates among adolescent patients ages 11-17 at this rural health clinic. This study demonstrates the feasibility of utilizing a multilevel intervention to address low HPV vaccination rates among rural adolescents and the potential of employing this strategy for a large-scale randomizing-controlled trial.

Do social media campaigns foster vaccination adherence? A systematic review of prior intervention-based campaigns on social media

The COVID-19 pandemic has demonstrated the importance of large-scale campaigns to facilitate vaccination adherence. Social media presents unique opportunities to reach broader audiences and reduces the costs of conducting national or global campaigns aimed at achieving herd immunity. Nonetheless, few studies have reviewed the effectiveness of prior social media campaigns for vaccination adherence, and several prior studies have shown that social media campaigns do not increase uptake rates. Hence, our objective is to conduct a systematic review to examine the effectiveness of social media campaigns and to identify the reasons for the mixed results of prior studies. Our methodology began with a search of seven databases, which resulted in the identification of 92 interventions conducted over digital media. Out of these 92 studies, only 15 adopted social media campaigns for immunization. We analyzed these 15 studies, along with a coding scheme we developed based on reviews of both health interventions and social media campaigns. Multiple coders, who were knowledgeable about social media campaigns and healthcare, analyzed the 15 cases and obtained an acceptable level of inter-coder reliability (> .80). The results from our systematic review show that only a few social media campaigns have succeeded in enhancing vaccination adherence. In addition, few campaigns have utilized known critical success factors of social media to induce vaccination adherence. Based on these findings, we discuss a set of research questions that informatics scholars should consider when identifying opportunities for using social media to resolve one of the most resilient challenges in public health. Finally, we conclude by discussing how the insights drawn from our systematic reviews contribute to advancing theories, such as social influence and the health belief model, into the realm of social media-based health interventions.

The Impact of a Comic Book Intervention on East African-American Adolescents' HPV Vaccine-Related Knowledge, Beliefs and Intentions

HPV vaccine uptake is low among East African-American (EAA) adolescents. We developed a comic book and evaluated the impact on HPV/HPV-vaccine knowledge, beliefs and vaccine intentions. The intervention was delivered to HPV-unvaccinated EAA adolescents attending educational dinners with their mothers. Adolescents aged 14-17 were sequentially assigned alternately to a pre- or post-test. Results were compared with chi-squared tests and generalized estimating equation models adjusted for age, gender, and mother's language. Among 136 (pre-test = 64, post-test = 72) participants (90% Somali), pre/post differences were observed for proportions of correct responses to questions on HPV (44.0% vs. 82.9%, RR:1.87[95%CI 1.54-2.27]), HPV-vaccine knowledge (42.8% vs. 75.4%, RR:1.74[95%CI 1.46-2.07]), comfort discussing HPV/HPV vaccine with parents (57.8% vs. 90.3% somewhat/very comfortable, RR:1.55[95%CI 1.24-1.94]), and willingness (37.5% vs. 83.3% probably/definitely willing, RR:2.16[95%CI 1.55-3.01]) and intention (34.4% vs. 86.1% somewhat/very likely, RR:2.38[95%CI:1.69-3.37]) to get vaccinated. The intervention improved participants' HPV/HPV-vaccine knowledge, beliefs and vaccine intentions. Similar interventions could be adapted for other racial/ethnic minorities.

Which interventions improve HPV vaccination uptake and intention in children, adolescents and young adults? An umbrella review

BACKGROUND

Human papillomavirus (HPV) vaccination offers protection against the virus responsible for cervical, oropharyngeal, anal, vulval and penile cancers. However, there is considerable variation across, and even within, countries as to how HPV vaccination is offered and accepted. This review aimed to identify what interventions exist to promote uptake and how effective they are.

METHODS

We conducted an umbrella review using the JBI (Joanna Briggs Institute) methodology to evaluate routine or catch-up interventions to increase HPV vaccination uptake and/or intention for children aged 9 years and older, adolescents and young adults up to 26. Comprehensive searches for English language quantitative systematic reviews, published between January 2011 and July 2021, were conducted across five databases. After reviewing titles and abstract, relevant papers were independently assessed in detail.

MAIN RESULTS

From 1046 records identified, 10 articles were included in the review. They reported on 95 randomised controlled trials, 28 quasi-experimental studies, 14 cohort studies, 6 non-randomised pretest/post-test studies with control groups, 5 single-group pretest/post-test studies, 1 single-group post-test study and 1 randomised longitudinal study. Some interventions promoted change at the individual, community or organisational level, while others used a multicomponent approach. Face-to-face presentations, printed information and supplementing both strategies with additional components appear effective at increasing vaccination intention, while reminders and multicomponent strategies, especially ones that include some intervention aimed at provider level, appear effective at increasing vaccination uptake. Interventions that did not lead to an improvement in HPV vaccination intention or uptake varied in design and impacts were inconsistent across children/adolescents, young adults or parents.

CONCLUSION

The evidence suggests that there is no single solution to increasing vaccination uptake and that different approaches may be better suited to certain populations. However, generalisations are limited by poor reporting and a paucity of studies beyond the USA. Further high-quality studies, therefore, are needed to understand how best to increase HPV vaccination uptake in different target populations.

Racism as the fundamental cause of ethnic inequities in COVID-19 vaccine hesitancy: A theoretical framework and empirical exploration using the UK Household Longitudinal Study

Ethnic inequities in COVID-19 vaccine hesitancy have been reported in the United Kingdom (UK), and elsewhere. Explanations have mainly focused on differences in the level of concern about side effects, and in lack of trust in the development and efficacy of vaccines. Here we propose that racism is the fundamental cause of ethnic inequities in vaccine hesitancy. We introduce a theoretical framework detailing the mechanisms by which racism at the structural, institutional, and interpersonal level leads to higher vaccine hesitancy among minoritised ethnic groups. We then use data from Wave 6 of the UK Household Longitudinal Study COVID-19 Survey (November to December 2020) to empirically examine these pathways, operationalised into institutional, community, and individual-level factors. We use the Karlson-Holm-Breen method to formally compare the relationship between ethnicity and vaccine hesitancy once age and gender, sociodemographic variables, and institutional, community, and individual-level factors are accounted for. Based on the Average Partial Effects we calculate the percentage of ethnic inequities explained by each set of factors. Findings show that institutional-level factors (socioeconomic position, area-level deprivation, overcrowding) explained the largest part (42%) of the inequity in vaccine hesistancy for Pakistani or Bangladeshi people, and community-level factors (ethnic density, community cohesion, political efficacy, racism in the area) were the most important factors for Indian and Black groups, explaining 35% and 15% of the inequity, respectively. Our findings suggest that if policy intervened on institutional and community-level factors - shaped by structural and institutional racism - considerable success in reducing ethnic inequities might be achieved.

Use of Onion Waste as Fuel for the Generation of Bioelectricity

The enormous environmental problems that arise from organic waste have increased due to the significant population increase worldwide. Microbial fuel cells provide a novel solution for the use of waste as fuel for electricity generation. In this investigation, onion waste was used, and managed to generate maximum peaks of 4.459 ± 0.0608 mA and 0.991 ± 0.02 V of current and voltage, respectively. The conductivity values increased rapidly to 179,987 ± 2859 mS/cm, while the optimal pH in which the most significant current was generated was 6968 ± 0.286, and the ° Brix values decreased rapidly due to the degradation of organic matter. The microbial fuel cells showed a low internal resistance (154,389 ± 5228 Ω), with a power density of 595.69 ± 15.05 mW/cm² at a current density of 6.02 A/cm²; these values are higher than those reported by other authors in the literature. The diffractogram spectra of the onion debris from FTIR show a decrease in the most intense peaks, compared to the initial ones with the final ones. It was possible to identify the species Pseudomona eruginosa, Acinetobacter bereziniae, Stenotrophomonas maltophilia, and Yarrowia lipolytica adhered to the anode electrode at the end of the monitoring using the molecular technique.

Promoting COVID-19 vaccine acceptance: recommendations from the Lancet Commission on Vaccine Refusal, Acceptance, and Demand in the USA

Since the first case of COVID-19 was identified in the USA in January, 2020, over 46 million people in the country have tested positive for SARS-CoV-2 infection. Several COVID-19 vaccines have received emergency use authorisations from the US Food and Drug Administration, with the Pfizer-BioNTech vaccine receiving full approval on Aug 23, 2021. When paired with masking, physical distancing, and ventilation, COVID-19 vaccines are the best intervention to sustainably control the pandemic. However, surveys have consistently found that a sizeable minority of US residents do not plan to get a COVID-19 vaccine. The most severe consequence of an inadequate uptake of COVID-19 vaccines has been sustained community transmission (including of the delta [B.1.617.2] variant, a surge of which began in July, 2021). Exacerbating the direct impact of the virus, a low uptake of COVID-19 vaccines will prolong the social and economic repercussions of the pandemic on families and communities, especially low-income and minority ethnic groups, into 2022, or even longer. The scale and challenges of the COVID-19 vaccination campaign are unprecedented. Therefore, through a series of recommendations, we present a coordinated, evidence-based education, communication, and behavioural intervention strategy that is likely to improve the success of COVID-19 vaccine programmes across the USA.

Facilitators and Barriers of HPV Vaccine Acceptance, Initiation, and Completion among LGBTQ Community in the U.S.: A Systematic Review

Objective: This study aims to identify facilitators and barriers of Human Papillomavirus (HPV) vaccine acceptance, initiation, and completion among LGBTQ (lesbian, gay, bisexual, trans, and queer) individuals. Method: A systematic review of qualitative and quantitative studies on HPV vaccine acceptance, initiation, and completion from 2006 to June 15, 2020 was performed in each database. Results: Twenty-six studies focusing on HPV vaccination among LGBTQ individuals were reviewed. Conclusions: Knowledge of HPV vaccine and healthcare providers' recommendations were identified as facilitators to receive HPV vaccinate, while high co-pay cost and concerns of the effectiveness and safety were identified as barriers.

The Impact of Video-Based Educational Interventions on Cervical Cancer, Pap Smear and HPV Vaccines

Background: Video-based interventions have the potential to contribute to long-lasting improvements in health-seeking behaviours. Ghana's upsurge rate of information and communication technology usage presents an opportunity to improve the awareness of HPV vaccination and screening rates of cervical cancer among women in Ghana. This research aimed to assess the impact of video-based educational intervention centred on the Health Belief and Transtheoretical Models of behavioural changes in promoting HPV vaccination, cervical carcinoma awareness and willingness to have Pap smear test (PST) among women in Ghana. Methods: To achieve the intended sample size, convenient, purposive and stratified random sampling techniques were used. SPSS v. 23.0 was used in the data analysis. Percentages and frequencies were used to represent participants' demographic characteristics, knowledge of (1) cervical carcinoma, (2) human papillomavirus vaccine, and (3) Pap smear test. The chi-square test by McNemar was employed to evaluate variations in the post- and pre-intervention responses. A p-value < 0.05 was considered statistically significant. The level of significance was adjusted owing to multiple comparisons by using the Bonferroni's correction. Results: Before the intervention, 84.2% of the participant had some knowledge or information about cervical cancer, but after the intervention, 100% of the participant became aware of cervical cancer which represents 15.8% increment at a P < .001. The willingness to have a pap smear test increased from 35.8% to 94.2% (df = 58.4%, P < .001) after the educational intervention. The willingness to be vaccinated increased from 47.5% to 81.7% (df = 34.2%, P < .001) after the educational intervention. Six months after the intervention, participants were followed-up. 253 (42.2%) participants had gone for cervical cancer screening (Pap smear test) while 347 (57.8%) participants had not been screened. In terms of HPV vaccination, 192 participants (32.0%) had begun their HPV vaccination cycle. Conclusion: The study results show that health education, using videos, may be influential in perception changing, self-efficacy improvement and the understanding of cervical carcinoma screening and HPV vaccination.

Using Machine Learning to Compare Provaccine and Antivaccine Discourse Among the Public on Social Media: Algorithm Development Study

BACKGROUND

Despite numerous counteracting efforts, antivaccine content linked to delays and refusals to vaccinate has grown persistently on social media, while only a few provaccine campaigns have succeeded in engaging with or persuading the public to accept immunization. Many prior studies have associated the diversity of topics discussed by antivaccine advocates with the public's higher engagement with such content. Nonetheless, a comprehensive comparison of discursive topics in pro- and antivaccine content in the engagement-persuasion spectrum remains unexplored.

OBJECTIVE

We aimed to compare discursive topics chosen by pro- and antivaccine advocates in their attempts to influence the public to accept or reject immunization in the engagement-persuasion spectrum. Our overall objective was pursued through three specific aims as follows: (1) we classified vaccine-related tweets into provaccine, antivaccine, and neutral categories; (2) we extracted and visualized discursive topics from these tweets to explain disparities in engagement between pro- and antivaccine content; and (3) we identified how those topics frame vaccines using Entman's four framing dimensions.

METHODS

We adopted a multimethod approach to analyze discursive topics in the vaccine debate on public social media sites. Our approach combined (1) large-scale balanced data collection from a public social media site (ie, 39,962 tweets from Twitter); (2) the development of a supervised classification algorithm for categorizing tweets into provaccine, antivaccine, and neutral groups; (3) the application of an unsupervised clustering algorithm for identifying prominent topics discussed on both sides; and (4) a multistep qualitative content analysis for identifying the prominent discursive topics and how vaccines are framed in these topics. In so doing, we alleviated methodological challenges that have hindered previous analyses of pro- and antivaccine discursive topics.

RESULTS

Our results indicated that antivaccine topics have greater intertopic distinctiveness (ie, the degree to which discursive topics are distinct from one another) than their provaccine counterparts (t₁₂₂=2.30, P=.02). In addition, while antivaccine advocates use all four message frames known to make narratives persuasive and influential, provaccine advocates have neglected having a clear problem statement.

CONCLUSIONS

Based on our results, we attribute higher engagement among antivaccine advocates to the distinctiveness of the topics they discuss, and we ascribe the influence of the vaccine debate on uptake rates to the comprehensiveness of the message frames. These results show the urgency of developing clear problem statements for provaccine content to counteract the negative impact of antivaccine content on uptake rates.

The impact of an educational forum intervention on East African mothers' HPV vaccine-related knowledge, attitudes, and intentions to vaccinate their adolescent children

OBJECTIVE

HPV vaccine uptake in U.S. East African adolescents is low. We developed and evaluated a culturally-targeted interactive educational intervention for East African immigrant mothers to increase HPV-vaccine-related knowledge, attitudes, and intentions to vaccinate adolescent children.

METHODS

Eligible mothers had ≥ 1 11-17-year-old child and reported all children's HPV vaccination status as unvaccinated or unknown. The intervention was delivered via 10 dinners in the Seattle metropolitan area (8 with the Somali community, 2 with the Ethiopian community). Educational presentations and pre/post-tests on knowledge, attitudes, and intentions were conducted in the participants' native language by a co-ethnic physician. Pre/post differences in responses were evaluated with McNemar's tests and GEE models. HPV vaccination uptake 6-months post-intervention was evaluated using state immunization registry data.

RESULTS

Of 115 participating mothers, most (84%) were Somali and < 40 years of age (60%). Median years of formal education was 8 (range 0-16), and 61% reported a household income <$25,000. Knowledge of HPV/HPV-vaccines was low pre-intervention, with correct responses ranging from 4% to 39% (61%-91% of responses were "not sure"); correct post-intervention responses ranged from 29% to 97%. Pre-intervention, only 12% of mothers thought they had enough information to make a decision about vaccination, compared to 90% post-intervention. Pre-intervention, only 16% of mothers reported that they were somewhat or very likely to vaccinate their child, compared to 83% post-intervention. All pre/post comparisons were statistically significantly different (p < 0.0001). Although mothers were more likely to report correct HPV-related knowledge and positive vaccine attitudes and intentions post-intervention, only two mothers' children initiated HPV vaccination within 6 months after the intervention.

CONCLUSIONS

Results illustrate that a culturally targeted educational intervention effectively increased East African mothers' HPV vaccine-related knowledge, attitudes, and intentions to vaccinate their adolescent children. Future research should identify additional intervention components that can bridge the gap between intention and behavior to facilitate HPV vaccine uptake.

Understanding and Promoting Racial Diversity in Healthcare Settings to Address Disparities in Pandemic Crisis Management

Background:

Health disparities have become apparent since the beginning of the COVID-19 pandemic. When observing racial discrimination in healthcare, self-reported incidences, and perceptions among minority groups in the United States suggest that, the most socioeconomically underrepresented groups will suffer disproportionately in COVID-19 due to synergistic mechanisms. This study reports racially-stratified data regarding the experiences and impacts of different groups availing the healthcare system to identify disparities in outcomes of minority and majority groups in the United States.

Methods:

Studies were identified utilizing PubMed, Embase, CINAHL Plus, and PsycINFO search engines without date and language restrictions. The following keywords were used: Healthcare, raci*, ethnic*, discriminant, hosti*, harass*, insur*, education, income, psychiat*, COVID-19, incidence, mortality, mechanical ventilation. Statistical analysis was conducted in Review Manager (RevMan V.5.4). Unadjusted Odds Ratios, P-values, and 95% confidence intervals were presented.

Results:

Discrimination in the United States is evident among racial groups regarding medical care portraying mental risk behaviors as having serious outcomes in the health of minority groups. The perceived health inequity had a low association to the majority group as compared to the minority group (OR = 0.41; 95% CI = 0.22 to 0.78; P = .007), and the association of mental health problems to the Caucasian-American majority group was low (OR = 0.51; 95% CI = 0.45 to 0.58; P < .001).

Conclusion:

As the pandemic continues into its next stage, efforts should be taken to address the gaps in clinical training and education, and medical practice to avoid the recurring patterns of racial health disparities that become especially prominent in community health emergencies. A standardized tool to assess racial discrimination and inequity will potentially improve pandemic healthcare delivery.

Systematic identification and replication of factors associated with human papillomavirus vaccine initiation among adolescents in the United States using an environment-wide association study approach

OBJECTIVE

Human papillomavirus (HPV) vaccination coverage is low among adolescents in the USA. Identification of factors associated with HPV vaccine initiation (receipt of ≥1 dose) is critical for improving uptake. Our objective was to systematically investigate all eligible factors available in a nationally representative sample of adolescents to identify drivers of HPV vaccine initiation using a novel methodological approach.

METHODS

We performed multiple cross-sectional analyses using data from the adolescent component of the National Immunization Surveys (NIS)-Teen between 2014 and 2019. Study participants were parents or caregivers of adolescents aged 13-17 years. Exposure variables measured sociodemographic and geographical characteristics, health conditions and healthcare provision. We tested the association between each factor and HPV vaccine initiation using univariate logistic regression and multivariate logistic regression adjusted for mother's age, mother's education level, mother's marital status, poverty status and adolescent's sex. We validated findings for each type of analysis within surveys, between surveys (across years 2014-2019) and across several subgroups (age, sex, poverty status and race/ethnicity).

RESULTS

Six factors were replicated in the multivariate analysis. Most replicated factors characterised the role of healthcare providers and healthcare-seeking behaviours. After adjustment, provider HPV recommendation remained the most strongly associated with HPV vaccine initiation (2019 NIS-Teen: OR 13.4, 95% CI 11.3 to 17.3, p<0.001). The variance explained by a full model including replicated factors was 0.39.

CONCLUSIONS

This is the first study to explore the association between all available factors in the NIS-Teen and HPV vaccine initiation in a systematic manner. Our study suggests that healthcare-seeking behaviours and interactions with the health system may be drivers of HPV vaccine initiation and warrant further study. Addressing these factors could improve the rate of HPV vaccine initiation among adolescents in the USA.

Cervical Cancer Immunotherapy: Facts and Hopes

It is a sad fact that despite being almost completely preventable through human papillomavirus (HPV) vaccination and screening, cervical cancer remains the fourth most common cancer to affect women worldwide. Persistent high-risk HPV (hrHPV) infection is the primary etiologic factor for cervical cancer. Upward of 70% of cases are driven by HPV types 16 and 18, with a dozen other hrHPVs associated with the remainder of cases. Current standard-of-care treatments include radiotherapy, chemotherapy, and/or surgical resection. However, they have significant side effects and limited efficacy against advanced disease. There are a few treatment options for recurrent or metastatic cases. Immunotherapy offers new hope, as demonstrated by the recent approval of programmed cell death protein 1-blocking antibody for recurrent or metastatic disease. This might be augmented by combination with antigen-specific immunotherapy approaches, such as vaccines or adoptive cell transfer, to enhance the host cellular immune response targeting HPV-positive cancer cells. As cervical cancer progresses, it can foster an immunosuppressive microenvironment and counteract host anticancer immunity. Thus, approaches to reverse suppressive immune environments and bolster effector T-cell functioning are likely to enhance the success of such cervical cancer immunotherapy. The success of nonspecific immunostimulants like imiquimod against genital warts also suggest the possibility of utilizing these immunotherapeutic strategies in cervical cancer prevention to treat precursor lesions (cervical intraepithelial neoplasia) and persistent hrHPV infections against which the licensed prophylactic HPV vaccines have no efficacy. Here, we review the progress and challenges in the development of immunotherapeutic approaches for the prevention and treatment of cervical cancer.