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Systematic review

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How to communicate science to the public? Recommendations for effective written communication derived from a systematic review

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Pre-print PsyArXiv Preprints
Year 2023
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This article includes 169 Primary studies 169 Primary studies (169 references)

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Communicating research findings to the public in a clear but engaging manner is challenging, yet central for maximizing their societal impact. This systematic review aimed to derive evidence-based strategies for science communication from experimental studies. Three databases were searched in December 2022. Experimental studies published in English or German were included if they tested the effect of providing written information about science to adults aged 16+ years by assessing the impact on at least one of four domains of science communication aims (understanding and knowledge, attitudes and trust, intention and behavior, engagement). A total of 171 publications were included. Derived strategies include avoiding jargon, carefully structuring texts, including citations and expert sources, being mindful about how and when to indicate conflict or uncertainty in science, using neutral language, and highlighting Open Science principles and replicability. They can be used to communicate science effectively to lay audiences, benefitting society.

Systematic review

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Nudging toward vaccination: a systematic review.

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Journal BMJ global health
Year 2021
Links Pubmed DOI PubMed Central

This article is included in 1 Broad synthesis 44 Broad syntheses (1 reference)

This article includes 44 Primary studies 44 Primary studies (44 references)

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BACKGROUND: Vaccine hesitancy (VH) and the global decline of vaccine coverage are a major global health threat, and novel approaches for increasing vaccine confidence and uptake are urgently needed. 'Nudging', defined as altering the environmental context in which a decision is made or a certain behaviour is enacted, has shown promising results in several health promotion strategies. We present a comprehensive synthesis of evidence regarding the value and impact of nudges to address VH. METHODS: We conducted a systematic review to determine if nudging can mitigate VH and improve vaccine uptake. Our search strategy used Medical Subject Headings (MeSH) and non-MeSH terms to identify articles related to nudging and vaccination in nine research databases. 15 177 titles were extracted and assessed following Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. The final list of included articles was evaluated using the Mixed Methods Appraisal Tool and the Grading of Recommendations, Assessment, Development and Evaluations framework. FINDINGS: Identified interventions are presented according to a framework for behaviour change, MINDSPACE. Articles (n=48) from 10 primarily high-income countries were included in the review. Nudging-based interventions identified include using reminders and recall, changing the way information is framed and delivered to an intended audience, changing the messenger delivering information, invoking social norms and emotional affect (eg, through storytelling, dramatic narratives and graphical presentations), and offering incentives or changing defaults. The most promising evidence exists for nudges that offer incentives to parents and healthcare workers, that make information more salient or that use trusted messengers to deliver information. The effectiveness of nudging interventions and the direction of the effect varies substantially by context. Evidence for some approaches is mixed, highlighting a need for further research, including how successful interventions can be adapted across settings. CONCLUSION: Nudging-based interventions show potential to increase vaccine confidence and uptake, but further evidence is needed for the development of clear recommendations. The ongoing COVID-19 pandemic increases the urgency of undertaking nudging-focused research. PROSPERO REGISTRATION NUMBER: CRD42020185817.

Systematic review

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Message Framing in Vaccine Communication: A Systematic Review of Published Literature.

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Authors Penţa MA , Băban A
Journal Health communication
Year 2018
Links Pubmed DOI

This article includes 4 Primary studies 4 Primary studies (4 references)

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Suboptimal vaccination rates are a significant problem in many countries today, in spite of improved access to vaccine services. As a result, there has been a recent expansion of research on how best to communicate about vaccines. The purpose of the present article is to provide an updated review of published, peer-reviewed empirical studies that examined the effectiveness of gain versus loss framing (i.e., goal framing) in the context of vaccine communication. To locate studies, we examined the reference list from the previous meta-analytic review (O'Keefe & Nan, 2012), and we conducted systematic searches across multiple databases. We included 34 studies in the qualitative synthesis. The relative effectiveness of goal-framed vaccine messages was often shown to depend on characteristics of the message recipient, perceived risk, or situational factors, yet most effects were inconsistent across studies, or simply limited by an insufficient number of studies. Methodological characteristics and variations are noted and discussed. The review points to several directions concerning moderators and mediators of framing effects where additional rigorous studies would be needed.

Systematic review

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Completeness of Human Papilloma Virus Vaccination: A Systematic Review.

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Journal Journal of Pediatric Nursing
Year 2018
Links Pubmed DOI

This article includes 5 Primary studies 5 Primary studies (5 references)

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Problem It has been reported that some adolescents and young women who started taking human papillomavirus (HPV) vaccination are not completing all three doses. The aim of this study was to systematically review intervention studies on HPV vaccination completion. Eligibility Criteria Intervention studies with a comparison group that assessed HPV vaccination completion rate as the primary outcome variable in adolescents and adults younger than 26 years of age, and published in English from 2006 to 2016, were eligible for review. Sample Five studies from a literature search of CINAHL, EMBASE, PsycARTICLES, PubMed, SCOPUS, and Web of Science databases were included in this review. Results The overall quality of the reviewed studies was moderate, and the studies have mainly been conducted in a high-income country. Intervention strategies were DVD-based education on HPV and reminders that were delivered via either electronic or non-electronic methods. Some studies used fixed type of electronic reminders. Others chose preference-based electronic reminders, allowing participants to select one or two delivery options from e-mail, text message, automated telephone message, or Facebook message. Non-electronic reminders were letters sent by standard mail. Conclusions The rates of HPV vaccination completeness increased with the interventions. However, the completeness rate of HPV vaccination remained unsatisfactory and lower than its initiation rate. Implications Educational and reminder interventions for HPV vaccination could contribute to HPV vaccination completion. However, this review highlights the need for more high-quality studies to identify the best way to promote vaccination completion.

Systematic review

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Visualizing risks in cancer communication: A systematic review of computer-supported visual aids.

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Journal Patient Education and Counseling
Year 2017
Links Pubmed DOI

This article includes 13 Primary studies 13 Primary studies (13 references)

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OBJECTIVE: Health websites are becoming important sources for cancer information. Lay users, patients and carers seek support for critical decisions, but they are prone to common biases when quantitative information is presented. Graphical representations of risk data can facilitate comprehension, and interactive visualizations are popular. This review summarizes the evidence on computer-supported graphs that present risk data and their effects on various measures. METHODS: The systematic literature search was conducted in several databases, including MEDLINE, EMBASE and CINAHL. Only studies with a controlled design were included. Relevant publications were carefully selected and critically appraised by two reviewers. RESULTS: Thirteen studies were included. Ten studies evaluated static graphs and three dynamic formats. Most decision scenarios were hypothetical. Static graphs could improve accuracy, comprehension, and behavioural intention. But the results were heterogeneous and inconsistent among the studies. Dynamic formats were not superior or even impaired performance compared to static formats. CONCLUSIONS: Static graphs show promising but inconsistent results, while research on dynamic visualizations is scarce and must be interpreted cautiously due to methodical limitations. PRACTICE IMPLICATIONS: Well-designed and context-specific static graphs can support web-based cancer risk communication in particular populations. The application of dynamic formats cannot be recommended and needs further research. (PsycINFO Database Record (c) 2017 APA, all rights reserved)

Systematic review

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Interventions to Improve HPV Vaccine Uptake: A Systematic Review.

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Journal Pediatrics
Year 2016
Links Pubmed DOI

This article includes 53 Primary studies 53 Primary studies (53 references)

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CONTEXT: The human papillomavirus (HPV) vaccine is a safe, effective cancer prevention method that is underutilized in the United States. Despite increased understanding of barriers to vaccination, rates remain low. Globally, developed and developing nations have achieved high rates of vaccination. OBJECTIVE: Identification of effective strategies is necessary to optimize uptake of the HPV vaccine. We systematically reviewed the literature for national and international interventions that have successfully increased HPV vaccine uptake. DATA SOURCES: We used a standardized protocol to search for articles published between January 1, 2006, and April 30, 2015, in 3 electronic databases: PubMed, Scopus, and Embase. STUDY SELECTION: We identified interventions designed to increase HPV vaccine uptake among adolescents and young adults aged 11 to 26 years. All study designs were acceptable. Only articles that included postintervention vaccination rates were included. DATA EXTRACTION: Two authors independently reviewed each article for data extraction and quality assessment. Interventions were classified according to the Community Preventive Service Task Force guide. RESULTS: Results were reported according to the RE-AIM (Reach, Effectiveness, Adoption, Implementation, Maintenance) framework. Fifty-one articles met eligibility criteria: 2 informational interventions, 18 behavioral interventions, and 31 environmental interventions. Factors associated with HPV vaccine uptake were increased vaccine availability, decreased financial barriers, and interventions targeting both providers and patients. LIMITATIONS: Lack of consistent RE-AIM metric reporting, limiting our ability to assess intervention validity and quality. CONCLUSIONS: Population-based vaccination strategies that increased vaccine availability reached the greatest number of adolescents and were most successful in achieving high rates of vaccination.

Systematic review

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Strategies for addressing vaccine hesitancy - A systematic review.

Journal Vaccine
Year 2015
Links Pubmed DOI

This article includes 174 Primary studies 175 Primary studies (174 references)

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The purpose of this systematic review is to identify, describe and assess the potential effectiveness of strategies to respond to issues of vaccine hesitancy that have been implemented and evaluated across diverse global contexts. METHODS: A systematic review of peer reviewed (January 2007-October 2013) and grey literature (up to October 2013) was conducted using a broad search strategy, built to capture multiple dimensions of public trust, confidence and hesitancy concerning vaccines. This search strategy was applied and adapted across several databases and organizational websites. Descriptive analyses were undertaken for 166 (peer reviewed) and 15 (grey literature) evaluation studies. In addition, the quality of evidence relating to a series of PICO (population, intervention, comparison/control, outcomes) questions defined by the SAGE Working Group on Vaccine Hesitancy (WG) was assessed using Grading of Recommendations Assessment, Development and Evaluation (GRADE) criteria; data were analyzed using Review Manager. RESULTS: Across the literature, few strategies to address vaccine hesitancy were found to have been evaluated for impact on either vaccination uptake and/or changes in knowledge, awareness or attitude (only 14% of peer reviewed and 25% of grey literature). The majority of evaluation studies were based in the Americas and primarily focused on influenza, human papillomavirus (HPV) and childhood vaccines. In low- and middle-income regions, the focus was on diphtheria, tetanus and pertussis, and polio. Across all regions, most interventions were multi-component and the majority of strategies focused on raising knowledge and awareness. Thirteen relevant studies were used for the GRADE assessment that indicated evidence of moderate quality for the use of social mobilization, mass media, communication tool-based training for health-care workers, non-financial incentives and reminder/recall-based interventions. Overall, our results showed that multicomponent and dialogue-based interventions were most effective. However, given the complexity of vaccine hesitancy and the limited evidence available on how it can be addressed, identified strategies should be carefully tailored according to the target population, their reasons for hesitancy, and the specific context.

Systematic review

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Effectiveness of interventions that apply new media to improve vaccine uptake and vaccine coverage: A systematic review

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Journal Human Vaccines and Immunotherapeutics
Year 2015
Links Pubmed DOI PubMed Central

This article includes 19 Primary studies 19 Primary studies (19 references)

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BACKGROUND: Vaccine-preventable diseases (VPD) are still a major cause of morbidity and mortality worldwide. In high and middle-income settings, immunization coverage is relatively high. However, in many countries coverage rates of routinely recommended vaccines are still below the targets established by international and national advisory committees. Progress in the field of communication technology might provide useful tools to enhance immunization strategies. OBJECTIVE: To systematically collect and summarize the available evidence on the effectiveness of interventions that apply new media to promote vaccination uptake and increase vaccination coverage. DESIGN: We conducted a systematic literature review. Studies published from January 1999 to September 2013 were identified by searching electronic resources (Pubmed, Embase), manual searches of references and expert consultation. Study setting We focused on interventions that targeted recommended vaccinations for children, adolescents and adults and: (1) aimed at increasing community demand for immunizations, or (2) were provider-based interventions. We limited the study setting to countries that are members of the Organisation for Economic Co-operation and Development (OECD). MAIN OUTCOME MEASURES: The primary outcome was a measure of vaccination (vaccine uptake or vaccine coverage). Considered secondary outcomes included willingness to receive immunization, attitudes and perceptions toward vaccination, and perceived helpfulness of the intervention. RESULTS: Nineteen studies were included in the systematic review. The majority of the studies were conducted in the US (74%, n = 14); 68% (n = 13) of the studies were experimental, the rest having an observational study design. Eleven (58%) reported results on the primary outcome. Retrieved studies explored the role of: text messaging (n.7, 37%), smartphone applications (n.1, 5%), Youtube videos (n.1, 5%), Facebook (n.1, 5%), targeted websites and portals (n.4, 21%), software for physicians and health professionals (n.4, 21%), and email communication (n.1, 5%). There is some evidence that text messaging, accessing immunization campaign websites, using patient-held web-based portals and computerized reminders increase immunization coverage rates. Insufficient evidence is available on the use of social networks, email communication and smartphone applications. CONCLUSION: Although there is great potential for improving vaccine uptake and vaccine coverage by implementing programs and interventions that apply new media, scant data are available and further rigorous research - including cost-effectiveness assessments - is needed.

Systematic review

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What are the factors that contribute to parental vaccine-hesitancy and what can we do about it?

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Authors Williams SE
Journal Human vaccines & immunotherapeutics
Year 2014
Links Pubmed DOI

This article is included in 1 Broad synthesis 15 Broad syntheses (1 reference)

This article includes 15 Primary studies 15 Primary studies (15 references)

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Parental refusal or delay of childhood vaccines is increasing. Barriers to vaccination among this population have been described, yet less is known regarding motivating factors. Researchers are beginning to evaluate various approaches to address the concerns of "vaccine-hesitant" parents, but few studies have evaluated the effect of interventions on timely vaccine uptake. Several models for communicating with vaccine-hesitant parents have been reported for healthcare providers; however, the effectiveness and utility of these strategies has not been quantified. This article reviews the known barriers to vaccination reported by vaccine-hesitant parents and the current evidence on strategies to address parental vaccine hesitancy.

Systematic review

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Educational interventions to increase HPV vaccination acceptance: a systematic review.

Journal Vaccine
Year 2014
Links Pubmed DOI PubMed Central

This article is included in 1 Broad synthesis 33 Broad syntheses (1 reference)

This article includes 33 Primary studies 33 Primary studies (33 references)

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BACKGROUND: The Human papillomavirus (HPV) vaccine has been available for protection against HPV-associated cervical cancer and genital warts since 2006. Nonetheless, uptake has varied among countries and populations within countries. Studies have found that individuals' knowledge and attitudes toward the vaccine are associated with immunization uptake. The purpose of the current review is to summarize and evaluate the evidence for educational interventions to increase HPV vaccination acceptance. METHODS: We searched the databases of PubMed and Web of Science for English-language articles describing educational interventions designed to improve HPV vaccination uptake, intention or attitude. RESULTS: We identified 33 studies of HPV vaccination educational interventions: 7 tested the effectiveness of interventions with parents, 8 with adolescents or young adults, and 18 compared the effectiveness of different message frames in an educational intervention among adolescents, young adults or their parents. Most studies involved populations with higher educational attainment and most interventions required participants to be literate. The minority of studies used the outcome of HPV vaccine uptake. Well-designed studies adequately powered to detect change in vaccine uptake were rare and generally did not demonstrate effectiveness of the tested intervention. CONCLUSIONS: There is not strong evidence to recommend any specific educational intervention for wide-spread implementation. Future studies are required to determine the effectiveness of culturally-competent interventions reaching diverse populations.