A systematic review of barriers and facilitators to participation in randomized controlled trials by Indigenous people from New Zealand, Australia, Canada and the United States

Review article: A primer for clinical researchers in the emergency department: Part XIII. Strategies to engage staff and enhance participant recruitment in emergency department research

Conducting research in ED is important and necessary to improve emergency care. Effective recruitment is an essential ingredient for the success of a research project and must be carefully monitored. Research coordinators are focused on optimising recruitment to research studies while also ensuring that the needs of participants and their families are met, and the research is acceptable to ED staff. In this paper, a group of experienced research coordinators from Australia and New Zealand have shared their strategies to engage staff and enhance recruitment of participants in emergency research. Although this paper is from a paediatric research network, the findings are applicable for EDs in general, both in Australasia and elsewhere.

Recruitment, retention and reporting of variables related to ethnic diversity in randomised controlled trials: an umbrella review

OBJECTIVE

This umbrella review synthesises evidence on the methods used to recruit and retain ethnically diverse participants and report and analyse variables related to ethnic diversity in randomised controlled trials.

DESIGN

Umbrella review.

DATA SOURCES

Ovid MEDLINE, Ovid Embase, CINAHL, PsycINFO and Cochrane and Campbell Libraries for review papers published between 1 January 2010 and 13 May 2024.

ELIGIBILITY CRITERIA

English language systematic reviews focusing on inclusion and reporting of ethnicity variables. Methodological quality was assessed using the AMSTAR 2 tool.

RESULTS

Sixty-two systematic reviews were included. Findings point to limited representation and reporting of ethnic diversity in trials. Recruitment strategies commonly reported by the reviews were community engagement, advertisement, face-to-face recruitment, cultural targeting, clinical referral, community presentation, use of technology, incentives and research partnership with communities. Retention strategies highlighted by the reviews included frequent follow-ups on participants to check how they are doing in the study, provision of incentives, use of tailored approaches and culturally appropriate interventions. The findings point to a limited focus on the analysis of variables relevant to ethnic diversity in trials even when they are reported in trials.

CONCLUSION

Significant improvements are required in enhancing the recruitment and retention of ethnically diverse participants in trials as well as analysis and reporting of variables relating to diversity in clinical trials.

PROSPERO REGISTRATION NUMBER

CRD42022325241.

Chronic respiratory disease in Indigenous peoples: a framework to address inequity and strengthen respiratory health and health care globally

Indigenous peoples around the world bear a disproportionate burden of chronic respiratory diseases, which are associated with increased risks of morbidity and mortality. Despite the imperative to address global inequity, research focused on strengthening respiratory health in Indigenous peoples is lacking, particularly in low-income and middle-income countries. Drivers of the increased rates and severity of chronic respiratory diseases in Indigenous peoples include a high prevalence of risk factors (eg, prematurity, low birthweight, poor nutrition, air pollution, high burden of infections, and poverty) and poor access to appropriate diagnosis and care, which might be linked to colonisation and historical and current systemic racism. Efforts to tackle this disproportionate burden of chronic respiratory diseases must include both global approaches to address contributing factors, including decolonisation of health care and research, and local approaches, co-designed with Indigenous people, to ensure the provision of culturally strengthened care with more equitable prioritisation of resources. Here, we review evidence on the burden of chronic respiratory diseases in Indigenous peoples globally, summarise factors that underlie health disparities between Indigenous and non-Indigenous people, propose a framework of approaches to improve the respiratory health of Indigenous peoples, and outline future directions for clinical care and research.

"We are not invited": Australian focus group results on how to improve ethnic diversity in trials

OBJECTIVES

Lack of ethnic diversity in trials may contribute to health disparities and to inequity in health outcomes. The primary objective was to investigate the experiences and perspectives of ethnically diverse populations about how to improve ethnic diversity in trials.

STUDY DESIGN AND SETTING

Qualitative data were collected via 16 focus groups with participants from 21 ethnically diverse communities in Australia. Data collection took place between August and September 2022 in community-based settings in six capital cities: Sydney, Melbourne, Perth, Adelaide, Brisbane, and Darwin, and one rural town: Bordertown (South Australia).

RESULTS

One hundred and fifty-eight purposively sampled adults (aged 18-85, 49% women) participated in groups speaking Tamil, Greek, Punjabi, Italian, Mandarin, Cantonese, Karin, Vietnamese, Nepalese, and Arabic; or English-language groups (comprising Fijian, Filipino, African, and two multicultural groups). Only 10 participants had previously taken part in medical research including three in trials. There was support for medical research, including trials; however, most participants had never been invited to participate. To increase ethnic diversity in trial populations, participants recommended recruitment via partnering with communities, translating trial materials and making them culturally accessible using audiovisual ways, promoting retention by minimizing participant burden, establishing trust and rapport between participants and researchers, and sharing individual results. Participants were reluctant to join studies on taboo topics in their communities (eg, sexual health) or in which physical specimens (eg, blood) were needed. Participants said these barriers could be mitigated by communicating about the topic in more culturally cognizant and safe ways, explaining how data would be securely stored, and reinforcing the benefit of medical research to humanity.

CONCLUSION

Participants recognized the principal benefits of trials and other medical research, were prepared to take part, and offered suggestions on recruitment, consent, data collection mechanisms, and retention to enable this to occur. Researchers should consider these community insights when designing and conducting trials; and government, regulators, funders, and publishers should allow for greater innovation and flexibility in their processes to enable ethnic diversity in trials to improve.

American Indian and Alaska Native recruitment strategies for health-related randomized controlled trials: A scoping review

BACKGROUND

Significant health disparities exist among American Indian and Alaska Natives (AI/ANs), yet AI/ANs are substantially underrepresented within health-related research, including randomized controlled trials (RCTs). Although research has previously charted representation inequities, there is however a gap in the literature documenting best practice for recruitment techniques of AI/ANs into RCTs. Therefore, the aim of this review was to systematically gather and analyze the published literature to identify common strategies for AI/AN participant recruitment for RCTs in the US.

METHODS

A scoping review methodology was engaged with a systematic search operationalized within relevant databases to February 19, 2022, with an additional updated search being carried out up until January 1, 2023: PubMed, Embase, Web of Science, PsycINFO, CINAHL, and Google Scholar. A two-stage article review process was engaged with double reviewers using Covidence review software. Content analysis was then carried out within the included articles by two reviewers using NVivo software to identify common categories within the data on the topic area.

RESULTS

Our review identified forty-one relevant articles with the main categories of recruitment strategies being: 1) recruitment methods for AI/ANs into RCTs (passive advertising recruitment approaches, individual-level recruitment approaches, relational methods of recruitment); 2) recruitment personnel used within RCTs; and, 3) relevant recruitment setting. The majority of the included studies used a culturally relevant intervention, as well as a community-involved approach to operationalizing the research.

CONCLUSION

Increasing AI/AN representation in RCTs is essential for generating evidence-based interventions that effectively address health disparities and improve health outcomes. Researchers and funding agencies should prioritize the engagement, inclusion, and leadership of AI/AN communities throughout the RCT research process. This includes early community involvement in study design, implementation of culturally tailored recruitment strategies, and dissemination of research findings in formats accessible to AI/AN communities.

Evidencing the impacts of health research: Insights from trials reported in the 2018 Australian Engagement and Impact Assessment

ISSUE ADDRESSED

While definitions of impact may vary, they often refer to the wider benefits of research evidenced beyond academia. We evaluated case studies featuring randomised trials from the 2018 Engagement and Impact Assessment to better understand how the impacts of health research are evidenced and assessed within Australia.

METHODS

We collated and evaluated 'high' scoring case studies submitted by higher education institutions with a focus on randomised trials across all areas of health research. A qualitative coding system was used for manual content analysis to assess the key characteristics of trials reported, subsequent impacts and the methods used to evidence impacts.

RESULTS

A total of 14 case studies were identified citing 35 clinical trials. The majority of interventions were behavioural with a focus on mental, behavioural or neurodevelopmental disorders. Most trials were phase III, focused on the treatment of the indication and were funded by industry. Contribution to clinical guidelines was the highest cited research impact. While there was evidence of researchers seeking to maximise trial impact, case studies lacked details on the role of trial participants and other beneficiaries in generating impact.

CONCLUSIONS

The impacts of health research can be improved through a better understanding of the priorities and agendas of funders, providing evidence of tangible impact rather than information that is contextual or predictive, and through the early development of impact strategies involving both researchers and beneficiaries. SO WHAT?: Large-scale impact exercises intended for a broad range of disciplines may not be reflective of the depth and scope of health sciences research including trials.

Exploring the feasibility of a mental health application (JoyPopTM) for Indigenous youth

Objective

The purpose of the current study was to explore the acceptability and feasibility of a resilience-focused mobile application, JoyPop™, for use with Indigenous youth.

Methods

A Haudenosaunee community-based research advisory committee co-developed the research project, in accordance with OCAP™ principles. Adopting a mixed-method approach, five youths from an immersion school used the JoyPop™ app for four consecutive weeks, as well as completed pre-test questions and weekly usage surveys. Most participants also completed post-test questions and a semi-structured interview. Based on a semi-structured interview protocol, youth responded to questions, and the most common themes were categorized to capture the experience of using the app.

Results

All youth reported a positive impression, used the app daily, found it easy to navigate, and indicated that they would recommend it to a friend. All features were uniformly positively endorsed. There were features that youth used most often (Deep Breathing, "SquareMoves" game, and Art features) and moderately (Rate My Mood, Journaling, and SleepEase). The social connection feature, Circle of Trust, was least utilized, with youth reporting a preference for in-person problem-solving. The drop-down menu of crisis helplines was not used. Youth recommended more gaming options. In terms of cultural resonance, appreciation for the app's use of water sounds in the SleepEase feature was expressed, as was cultural consistency with the "Good Mind" perspective. Recommendations included additional nature sounds, Indigenous design elements, the inclusion of Native language words, and traditional stories.

Discussion

The JoyPop™ app was positively received by Six Nations youth, and ways to ensure its cultural appropriateness were identified. Moving forward, it is recommended that Indigenous designers create a new version with community design co-creation. Additional research with various groups of Indigenous youth is warranted as a pan-Indigenous approach is not recommended.

Health System Enablers and Barriers to Continuity of Care for First Nations Peoples Living with Chronic Disease

Introduction

Failings in providing continuity of care following an acute event for a chronic disease contribute to care inequities for First Nations Peoples in Australia, Canada, and Aotearoa (New Zealand).

Methods

A rapid narrative review, including primary studies published in English from Medline, Embase, PsycINFO, and Cochrane Central, concerning chronic diseases (cancer, cardiovascular disease, chronic kidney disease, diabetes, and related complications), was conducted. Barriers and enablers to continuity of care for First Nations Peoples were explored considering an empirical lens from the World Health Organization framework on integrated person-centred health services.

Results

Barriers included a need for more community initiatives, health and social care networks, and coaching and peer support. Enabling strategies included care adapted to patients' cultural beliefs and behavioural, personal, and family influences; continued and trusting relationships among providers, patients, and caregivers; and provision of flexible, consistent, adaptable care along the continuum.

Discussion

The support and co-creation of care solutions must be a dialogical participatory process adapted to each community.

Conclusions

Health and social care should be harmonised with First Nations Peoples' cultural beliefs and family influences. Sustainable strategies require a co-design commitment for well-funded flexible care plans considering coaching and peer support across the lifespan.

Factors that impact on recruitment to vaccine trials in the context of a pandemic or epidemic: a qualitative evidence synthesis

BACKGROUND

The World Health Organization declared the COVID-19 pandemic on 11 March 2020. Vaccine development and deployment were swiftly prioritised as a method to manage and control disease spread. The development of an effective vaccine relies on people's participation in randomised trials. Recruitment to vaccine trials is particularly challenging as it involves healthy volunteers who may have concerns around the potential risks and benefits associated with rapidly developed vaccines.

OBJECTIVES

To explore the factors that influence a person's decision to participate in a vaccine trial in the context of a pandemic or epidemic.

SEARCH METHODS

We used standard, extensive Cochrane search methods. The latest search date was June 2021.

SELECTION CRITERIA

We included qualitative studies and mixed-methods studies with an identifiable qualitative component. We included studies that explored the perspectives of adults aged 18 years or older who were invited to take part in vaccine trials in the context of a pandemic or epidemic.

DATA COLLECTION AND ANALYSIS

We assessed the title, abstracts and full texts identified by the search. We used a sampling frame to identify data-rich studies that represented a range of diseases and geographical spread. We used QSR NVivo to manage extracted data. We assessed methodological limitations using an adapted version of the Critical Skills Appraisal Programme (CASP) tool for qualitative studies. We used the 'best-fit framework approach' to analyse and synthesise the evidence from our included studies. We then used the Confidence in the Evidence from Reviews of Qualitative research (GRADE-CERQual) assessment to assess our confidence in each finding and develop implications for practice.

MAIN RESULTS

We included 34 studies in our review. Most studies related to HIV vaccine trials. The other studies related to Ebola virus, tuberculosis, Zika virus and COVID-19. We developed 20 key findings, under three broad themes (with seven subthemes), that described the factors that people consider when deciding whether to take part in a vaccine trial for a pandemic or epidemic disease. Our GRADE-CERQual confidence was high in nine of the key findings, moderate in 10 key findings and low in one key finding. The main reason for downgrading review findings were concerns regarding the relevance and adequacy of the underlying data. As a result of the over-representation of HIV studies, our GRADE-CERQual assessment of some findings was downgraded in terms of relevance because the views described may not reflect those of people regarding vaccine trials for other pandemic or epidemic diseases. Adequacy relates to the degree of richness and quantity of data supporting a review finding. Moderate concerns about adequacy resulted in a downgrading of some review findings. Some factors were considered to be under the control of the trial team. These included how trial information was communicated and the inclusion of people in the community to help with trial information dissemination. Aspects of trial design were also considered under control of the trial team and included convenience of participation, provision of financial incentives and access to additional support services for those taking part in the trial. Other factors influencing people's decision to take part could be personal, from family, friends or wider society. From a personal perceptive, people had concerns about vaccine side effects, vaccine efficacy and possible impact on their daily lives (carer responsibilities, work, etc.). People were also influenced by their families, and the impact participation may have on relationships. The fear of stigma from society influenced the decision to take part. Also, from a societal perspective, the level of trust in governments' involvement in research and trial may influence a person's decision. Finally, the perceived rewards, both personal and societal, were influencing factors on the decision to participate. Personal rewards included access to a vaccine, improved health and improved disease knowledge, and a return to normality in the context of a pandemic or epidemic. Potential societal rewards included helping the community and contributing to science, often motivated by the memories of family and friends who had died from the disease.

AUTHORS' CONCLUSIONS

This review identifies many of the factors that influence a person's decision to take part in a vaccine trial, and these reflect findings from reviews that examine trials more broadly. However, we also recognise some factors that become more important in connection with a vaccine trial in the context of a pandemic or epidemic. These factors include the potential stigma of taking part, the possible adverse effects of a vaccine, the added motivation for helping society, the role of community leaders in trial dissemination, and the level of trust placed in governments and companies developing vaccines. These specific influences need to be considered by trial teams when designing, and communicating about, vaccine trials in the context of a pandemic or epidemic.

A virtual randomized controlled trial of an alcohol-exposed pregnancy prevention mobile app with urban American Indian and Alaska Native young women: Native WYSE CHOICES rationale, design, and methods

BACKGROUND

Fetal Alcohol Spectrum Disorders (FASD) result in lifelong disability and are a leading cause of preventable birth defects in the US, including for American Indian and Alaska Natives (AIANs). Prevention of alcohol exposed pregnancies (AEPs), which can cause FASD, is typically aimed at adult women who are risky drinkers and have unprotected sex. Among AIANs, AEP prevention research has been primarily conducted in reservation communities, even though over 70% of AIANs live in urban areas. Culturally appropriate AEP prevention for urban AIAN young women, regardless of current drinking or sexual behaviors, may maximize the potential for primary prevention at the beginning of the reproductive years for this underserved population.

METHODS

We developed a virtual randomized controlled trial (RCT) - fully implemented through technology - to evaluate Native WYSE CHOICES, a culturally tailored mobile app, with urban AIAN young women ages 16-20 nationally. While virtual RCTs are not new, this is the first engaging a solely urban AIAN population, historically excluded from research. Participants are recruited on a rolling basis through the project social media community, organizational partnerships, and in-person events. Eligible participants complete a baseline survey and are randomized to either the app's intervention or comparison arm - each of which provide about 3 h of content. Follow-up data are collected at 1-, 6-, and 12-months post-baseline.

RESULTS

Our study offers a template for building trust and extending reach to this underserved population while also providing important lessons and insights on advances in virtual or hybrid research approaches.

Community Health Representatives as Trusted Sources for Increasing Representation of American Indian Communities in Clinical Research

Indigenous and American Indian Alaskan Native (AI/AN) community members are systematically underrepresented in clinical trial research. This paper focuses on exploratory steps to partner with Native Nations of Arizona to engage Community Health Representatives (CHR) as a trusted source for building COVID-19 clinical trial research, including vaccine trials awareness. CHRs are frontline public health workers who apply a unique understanding of the experience, language, and culture of the population served. This workforce has entered the spotlight as essential to the prevention and control of COVID-19.

METHODS

Three Tribal CHR programs were engaged to develop and refine culturally centered educational materials and a pre-post survey using a consensus-based decision-making approach. CHRs used these materials in brief education sessions during regular client home visits and community events.

RESULTS

At 30 days post CHR intervention, participants (N = 165) demonstrated significantly increased awareness about and ability to enroll in COVID-19 treatment and vaccine trials. Participants also described a significant increase in trust in researchers, decreased perceived barriers related to cost for participation in a clinical trial, and improved belief that participation in a COVID-19 clinical trial for treatment was considered a benefit to American Indian and Alaskan Native people.

CONCLUSION

CHRs as trusted sources of information, coupled with culturally centered education materials designed by CHRs for CHR clients, demonstrated a promising approach to improved awareness of clinical trial research generally and COVID-19 trials specifically among Indigenous and American Indian community members of Arizona.

Change in health outcomes for First Nations children with chronic wet cough: rationale and study protocol for a multi-centre implementation science study

BACKGROUND

In children, chronic wet cough may be a sign of underlying lung disease, including protracted bacterial bronchitis (PBB) and bronchiectasis. Chronic (> 4 weeks in duration) wet cough (without indicators pointing to alternative causes) that responds to antibiotic treatment is diagnostic of PBB. Timely recognition and management of PBB can prevent disease progression to irreversible bronchiectasis with lifelong consequences. However, detection and management require timely health-seeking by carers and effective management by clinicians. We aim to improve (a) carer health-seeking for chronic wet cough in their child and (b) management of chronic wet cough in children by clinicians. We hypothesise that implementing a culturally integrated program, which is informed by barriers and facilitators identified by carers and health practitioners, will result in improved lung health of First Nations children, and in the future, a reduced the burden of bronchiectasis through the prevention of the progression of protracted bacterial bronchitis to bronchiectasis.

METHODS

This study is a multi-centre, pseudorandomised, stepped wedge design. The intervention is the implementation of a program. The program has two components: a knowledge dissemination component and an implementation component. The implementation is adapted to each study site using a combined Aboriginal Participatory Action Research and an Implementation Science approach, guided by the Consolidated Framework of Implementation Research. There are three categories of outcome measures related to (i) health (ii) cost, and (iii) implementation. We will measure health-seeking as the proportion of parents seeking help for their child in a 6-month period before the intervention and the same 6-month period (i.e., the same six calendar months) thereafter. The parent-proxy, Cough-specific Quality of Life (PC-QoL) will be the primary health-related outcome measure.

DISCUSSION

We hypothesise that a tailored intervention at each site will result in improved health-seeking for carers of children with a chronic wet cough and improved clinician management of chronic wet cough. In addition, we expect this will result in improved lung health outcomes for children with a chronic wet cough.

TRIAL REGISTRATION

Australian New Zealand Clinical Trials Registry; ACTRN12622000430730 , registered 16 March 2022, Retrospectively registered.

Family-centred interventions for Indigenous early childhood well-being by primary healthcare services

BACKGROUND

Primary healthcare, particularly Indigenous-led services, are well placed to deliver services that reflect the needs of Indigenous children and their families. Important characteristics identified by families for primary health care include services that support families, accommodate sociocultural needs, recognise extended family child-rearing practices, and Indigenous ways of knowing and doing business. Indigenous family-centred care interventions have been developed and implemented within primary healthcare services to plan, implement, and support the care of children, immediate and extended family and the home environment. The delivery of family-centred interventions can be through environmental, communication, educational, counselling, and family support approaches.

OBJECTIVES

To evaluate the benefits and harms of family-centred interventions delivered by primary healthcare services in Canada, Australia, New Zealand, and the USA on a range of physical, psychosocial, and behavioural outcomes of Indigenous children (aged from conception to less than five years), parents, and families.

SEARCH METHODS

We used standard, extensive Cochrane search methods. The latest search date was 22 September 2021.

SELECTION CRITERIA

We included randomised controlled trials (RCTs), cluster RCTs, quasi-RCTs, controlled before-after studies, and interrupted time series of family-centred care interventions that included Indigenous children aged less than five years from Canada, Australia, New Zealand, and the USA. Interventions were included if they met the assessment criteria for family-centred interventions and were delivered in primary health care. Comparison interventions could include usual maternal and child health care or one form of family-centred intervention versus another.

DATA COLLECTION AND ANALYSIS

We used standard Cochrane methods. Our primary outcomes were 1. overall health and well-being, 2. psychological health and emotional behaviour of children, 3. physical health and developmental health outcomes of children, 4. family health-enhancing lifestyle or behaviour outcomes, 5. psychological health of parent/carer. 6. adverse events or harms. Our secondary outcomes were 7. parenting knowledge and awareness, 8. family evaluation of care, 9. service access and utilisation, 10. family-centredness of consultation processes, and 11. economic costs and outcomes associated with the interventions. We used GRADE to assess the certainty of the evidence for our primary outcomes.

MAIN RESULTS

We included nine RCTs and two cluster-RCTs that investigated the effect of family-centred care interventions delivered by primary healthcare services for Indigenous early child well-being. There were 1270 mother-child dyads and 1924 children aged less than five years recruited. Seven studies were from the USA, two from New Zealand, one from Canada, and one delivered in both Australia and New Zealand. The focus of interventions varied and included three studies focused on early childhood caries; three on childhood obesity; two on child behavioural problems; and one each on negative parenting patterns, child acute respiratory illness, and sudden unexpected death in infancy. Family-centred education was the most common type of intervention delivered. Three studies compared family-centred care to usual care and seven studies provided some 'minimal' intervention to families such as education in the form of pamphlets or newsletters. One study provided a minimal intervention during the child's first 24 months and then the family-centred care intervention for one year. No studies had low or unclear risk of bias across all domains. All studies had a high risk of bias for the blinding of participants and personnel domain. Family-centred care may improve overall health and well-being of Indigenous children and their families, but the evidence was very uncertain. The pooled effect estimate from 11 studies suggests that family-centred care improved the overall health and well-being of Indigenous children and their families compared no family-centred care (standardised mean difference (SMD) 0.14, 95% confidence interval (CI) 0.03 to 0.24; 2386 participants). We are very uncertain whether family-centred care compared to no family-centred care improves the psychological health and emotional behaviour of children as measured by the Infant Toddler Social Emotional Assessment (ITSEA) (Competence domain) (mean difference (MD) 0.04, 95% CI -0.03 to 0.11; 2 studies, 384 participants). We assessed the evidence as being very uncertain about the effect of family-centred care on physical health and developmental health outcomes of children. Pooled data from eight trials on physical health and developmental outcomes found there was little to no difference between the intervention and the control groups (SMD 0.13, 95% CI -0.00 to 0.26; 1961 participants). The evidence is also very unclear whether family-centred care improved family-enhancing lifestyle and behaviours outcomes. Nine studies measured family health-enhancing lifestyle and behaviours and pooled analysis found there was little to no difference between groups (SMD 0.16, 95% CI -0.06 to 0.39; 1969 participants; very low-certainty evidence). There was very low-certainty evidence of little to no difference for the psychological health of parents and carers when they participated in family-centred care compared to any control group (SMD 0.10, 95% CI -0.03 to 0.22; 5 studies, 975 parents/carers). Two studies stated that there were no adverse events as a result of the intervention. No additional data were provided. No studies reported from the health service providers perspective or on outcomes for family's evaluation of care or family-centredness of consultation processes.

AUTHORS' CONCLUSIONS

There is some evidence to suggest that family-centred care delivered by primary healthcare services improves the overall health and well-being of Indigenous children, parents, and families. However, due to lack of data, there was not enough evidence to determine whether specific outcomes such as child health and development improved as a result of family-centred interventions. Seven of the 11 studies delivered family-centred education interventions. Seven studies were from the USA and centred on two particular trials, the 'Healthy Children, Strong Families' and 'Family Spirit' trials. As the evidence is very low certainty for all outcomes, further high-quality trials are needed to provide robust evidence for the use of family-centred care interventions for Indigenous children aged less than five years.

Effective primary care management of type 2 diabetes for indigenous populations: A systematic review

Background

Indigenous peoples in high income countries are disproportionately affected by Type 2 Diabetes. Socioeconomic disadvantages and inadequate access to appropriate healthcare are important contributors.

Objectives

This systematic review investigates effective designs of primary care management of Type 2 Diabetes for Indigenous adults in Australia, Canada, New Zealand, and the United States. Primary outcome was change in mean glycated haemoglobin. Secondary outcomes were diabetes-related hospital admission rates, treatment compliance, and change in weight or Body Mass Index.

Methods

Included studies were critically appraised using Joanna Briggs Institute appraisal checklists. A mixed-method systematic review was undertaken. Quantitative findings were compared by narrative synthesis, meta-aggregation of qualitative factors was performed.

Results

Seven studies were included. Three reported statistically significant reductions in means HbA1c following their intervention. Seven components of effective interventions were identified. These were: a need to reduce health system barriers to facilitate access to primary care (which the other six components work towards), an essential role for Indigenous community consultation in intervention planning and implementation, a need for primary care programs to account for and adapt to changes with time in barriers to primary care posed by the health system and community members, the key role of community-based health workers, Indigenous empowerment to facilitate community and self-management, benefit of short-intensive programs, and benefit of group-based programs.

Conclusions

This study synthesises a decade of data from communities with a high burden of Type 2 Diabetes and limited research regarding health system approaches to improve diabetes-related outcomes. Policymakers should consider applying the seven identified components of effective primary care interventions when designing primary care approaches to mitigate the impact of Type 2 Diabetes in Indigenous populations. More robust and culturally appropriate studies of Type 2 Diabetes management in Indigenous groups are needed.

Trail registration

Registered with PROSPERO (02/04/2021: CRD42021240098).

Efficacy of a 3% Kānuka oil cream for the treatment of moderate-to-severe eczema: A single blind randomised vehicle-controlled trial

BACKGROUND

Māori, the indigenous people of New Zealand, have traditionally used the kānuka tree as part of their healing system, Rongoā Māori, and the oil from the kānuka tree has demonstratable anti-inflammatory and anti-bacterial properties. This trial investigated the efficacy and safety of a 3% kānuka oil (KO) cream compared to vehicle control (VC) for the topical treatment of eczema. The trial was conducted through a nationwide community pharmacy research network.

METHODS

This single-blind, parallel-group, randomised, vehicle-controlled trial was undertaken in 11 research trained community pharmacies across New Zealand. Eighty adult participants with self-reported moderate-to-severe eczema, assessed by Patient Orientated Eczema Measure (POEM) were randomised by blinded investigators to apply 3% KO cream or VC topically, twice daily, for six weeks. Randomisation was stratified by site and eczema severity, moderate versus severe. Primary outcome was difference in POEM scores at week six between groups by intention to treat. The study is registered on the Australian New Zealand Clinical Trial Registry (ANZCTR) reference number, ACTRN12618001754235.

FINDINGS

Eighty participants were recruited between 17 May 2019 and 10 May 2021 (41 KO group, 39 VC group). Mean POEM score (standard deviation) improved between baseline and week six for KO group, 18·4 (4·4) to 6·8 (5·5), and VC group, 18·7 (4·5) to 9·8 (6·5); mean difference between groups (95% confidence interval) was -3·1 (-6·0 to -0·2), p = 0·036. There were three adverse events reported in the KO group related to the intervention and two in the control group.

INTERPRETATION

The KO group had a significant improvement in POEM score compared to VC. Rates of adverse events and withdrawals were similar between groups with no serious adverse events reported. Treatment acceptability was high for both groups across all domains. Our results suggest that in adults with moderate-to-severe eczema, the addition of KO to a daily emollient regimen led to a reduction in POEM score compared to VC. KO may represent an effective, safe, and well tolerated treatment for moderate-to-severe eczema in adults.

FUNDING

Hikurangi Bioactives (Ruatoria, New Zealand) and HoneyLab (Tauranga, New Zealand), supported by a grant from Callaghan Innovation.

Validating a predictive algorithm for suicide risk with Alaska Native populations

INTRODUCTION

The American Indian/Alaska Native (AI/AN) suicide rate in Alaska is twice the state rate and four times the U.S. rate. Healthcare systems need innovative methods of suicide risk detection. The Mental Health Research Network (MHRN) developed suicide risk prediction algorithms in a general U.S.

PATIENT POPULATION

METHODS

We applied MHRN predictors and regression coefficients to electronic health records of AI/AN patients aged ≥13 years with behavioral health diagnoses and primary care visits between October 1, 2016, and March 30, 2018. Logistic regression assessed model accuracy for predicting and stratifying risk for suicide attempt within 90 days after a visit. We compared expected to observed risk and assessed model performance characteristics.

RESULTS

10,864 patients made 47,413 primary care visits. Suicide attempt occurred after 589 (1.2%) visits. Visits in the top 5% of predicted risk accounted for 40% of actual attempts. Among visits in the top 0.5% of predicted risk, 25.1% were followed by suicide attempt. The best fitting model had an AUC of 0.826 (95% CI: 0.809-0.843).

CONCLUSIONS

The MHRN model accurately predicted suicide attempts among AI/AN patients. Future work should develop clinical and operational guidance for effective implementation of the model with this population.

Barriers and facilitators to cancer clinical trial enrollment and participation among rural populations: a scoping review protocol

OBJECTIVE

The objective of this scoping review is to identify barriers and facilitators related to cancer clinical trial enrollment and participation among rural populations.

INTRODUCTION

Advancing the effectiveness of cancer treatment and increasing early detection of cancer relies on enrollment and participation of individuals in cancer clinical trials. Lack of enrollment and participation in trials is a concern, and there is evidence that individuals living in rural areas are unlikely to participate in such trials. Information on barriers to, and facilitators of, enrollment and participation in cancer clinical trials is needed for the development of evidence-based interventions to increase the enrollment and participation of rural populations.

INCLUSION CRITERIA

The review will consider studies on adults aged 18 years or older living in rural areas. Studies that report on barriers and facilitators to enrollment and participation in cancer clinical trials, including both cancer therapeutic and cancer early detection trials, will be included in the review. The review will consider quantitative, qualitative, and text and opinion papers for inclusion.

METHODS

The search strategy will aim to locate published primary studies, reviews, and opinion papers, the latter including those by professional oncology organizations. The databases to be searched include MEDLINE, CINAHL, Embase, Web of Science, and Cochrane Library. Gray literature databases will also be searched. Two independent reviewers will retrieve full-text studies and extract data. The results will be presented in diagrammatic format with a narrative summary.

Implementation of the Diabetes Community Exercise and Education Programme (DCEP) for the management of type 2 diabetes: qualitative process evaluation

OBJECTIVES

To examine context-specific delivery factors, facilitators and barriers to implementation of the Diabetes Community Exercise and Education Programme (DCEP) for adults with type 2 diabetes (T2D) using the Reach, Effectiveness, Adoption, Implementation and Maintenance framework.

DESIGN

A qualitative evaluation embedded within the DCEP pragmatic randomised controlled trial. Data collected via focus groups and interviews and analysed thematically.

SETTING

Community-based in two cities (Dunedin and Invercargill) in the lower south island of New Zealand.

PARTICIPANTS

Seventeen adults diagnosed with T2D attending DCEP and 14 healthcare professionals involved in DCEP delivery.

INTERVENTION

DCEP is a twice weekly session of exercise and education over 12 weeks, followed by a twice weekly ongoing exercise class.

RESULTS

While our reach target was met (sample size, ethnic representation), the randomisation process potentially deterred Māori and Pasifika from participating. The reach of DCEP may be extended through the use of several strategies: promotion of self-referral, primary healthcare organisation ownership and community champions. DCEP was considered effective based on perceived benefit. The social and welcoming environment created relationships and connections. People felt comfortable attending DCEP and empowered to learn. Key to implementation and adoption was the building of trusting relationships with local health providers and communities. This takes time and care and cannot be rushed. Training of staff and optimising communication needed further attention. To maintain DCEP, delivery close to where people live and a generic approach catering for people with multiple chronic conditions may be required.

CONCLUSIONS

For success, lifestyle programmes such as DCEP, need time and diligence to build and maintain networks and trust. Beyond frontline delivery staff and target populations, relationships should extend to local healthcare organisations and communities. Access and ongoing attendance are enabled by healthcare professionals practicing in a nuanced person-centred manner; this, plus high staff turnover, necessitates ongoing training.

TRIAL REGISTRATION NUMBER

ACTRN12617001624370.

The representation of Indigenous peoples in chronic disease clinical trials in Australia, Canada, New Zealand, and the United States

BACKGROUND

Indigenous peoples are overrepresented with chronic health conditions and experience suboptimal outcomes compared with non-Indigenous peoples. Genetic variations influence therapeutic responses, thus there are potential risks and harm when extrapolating evidence from the general population to Indigenous peoples. Indigenous population-specific clinical studies, and inclusion of Indigenous peoples in general population clinical trials, are perceived to be rare. Our study (1) identified and characterized Indigenous population-specific chronic disease trials and (2) identified the representation of Indigenous peoples in general population chronic disease trials conducted in Australia, Canada, New Zealand, and the United States.

METHODS

For Objective 1, publicly available clinical trial registries were searched from May 2010 to May 2020 using Indigenous population-specific terms and included for data extraction if in pre-specified chronic disease. For identified trials, we extracted Indigenous population group identity and characteristics, type of intervention, and funding type. For Objective 2, a random selection of 10% of registered clinical trials was performed and the proportion of Indigenous population participants enrolled extracted.

RESULTS

In total, 170 Indigenous population-specific chronic disease trials were identified. The clinical trials were predominantly behavioral interventions (n = 95). Among general population studies, 830 studies were randomly selected. When race was reported in studies (n = 526), Indigenous individuals were enrolled in 172 studies and constituted 5.6% of the total population enrolled in those studies.

CONCLUSION

Clinical trials addressing chronic disease conditions in Indigenous populations are limited. It is crucial to ensure adequate representation of Indigenous peoples in clinical trials to ensure trial data are applicable to their clinical care.

Factors that impact on recruitment to vaccine trials during a pandemic or epidemic: a qualitative evidence synthesis

This is a protocol for a Cochrane Review (qualitative). The objectives are as follows:

This is a protocol for a Cochrane Review (qualitative). The review aims to explore the factors associated with a person’s decision to take part in a pandemic or epidemic vaccine trial.

Randomised clinical trial research within Aboriginal and Torres Strait Islander primary health services: a qualitative study

OBJECTIVE

To better understand how to undertake valuable, ethical and sustainable randomised controlled clinical trial (RCT) research within Aboriginal and Torres Strait Islander primary health services.

DESIGN

In a qualitative approach, we utilised data collected between 2013 and 2020 during the planning and implementation of two RCTs. The data comprised agreed records of research meetings, and semistructured interviews with clinical trial stakeholders. The stakeholders were parents/carers of child participants, and site-based research officers, healthcare providers and community advisory groups. Our thematic analysis was informed by constructivist grounded theory.

SETTING

The RCTs investigated the management of otitis media in Aboriginal and Torres Strait Islander children, with the first RCT commencing recruitment in 2014 and the second in 2017. They took place in Aboriginal Medical Services (AMSs), large primary health services for Aboriginal and Torres Strait Islander people, based in urban and regional communities across two Australian states and one territory.

RESULTS

We analysed data from 56 meetings and 67 interviews, generating themes on making research valuable and undertaking ethical and sustainable RCTs. Aboriginal and Torres Strait Islander leadership, and support of AMSs in their service delivery function were critical. The broad benefits of the trials were considered important to sustainability, including workforce development, enhanced ear healthcare and multidirectional research capacity building. Participants emphasised the long-term responsibility of research teams to deliver benefits to AMSs and communities regardless of RCT outcomes, and to focus on relationships, reciprocity and creating positive experiences of research.

CONCLUSION

We identify principles and strategies to assist in undertaking ethical and sustainable RCTs within Aboriginal and Torres Strait Islander primary health services. Maintaining relationships with AMSs and focusing on mutual workforce development and capacity building creates opportunities for long-term benefits so that health research and RCTs work for Aboriginal and Torres Strait Islander peoples, services, communities and researchers.

TRIAL REGISTRATION NUMBER

ACTRN12613001068752 (Pre-results); ACTRN12617001652369 (Pre-results).

Breast cancer in Indigenous women living in Canada: a scoping review protocol

OBJECTIVE

The objective of this review is to describe and synthesize the current state of knowledge pertaining to breast cancer in Indigenous women living in Canada. We will examine the continuum of breast cancer care in this population, including breast cancer screening, diagnosis, treatment, and surveillance.

INTRODUCTION

Breast cancer in Indigenous women is an evolving health care concern in Canada, with mounting evidence suggesting that these women present at later stages, and have poorer survival rates compared with the general population. A comprehensive overview of the state of knowledge of breast cancer in this population is required.

INCLUSION CRITERIA

The population of interest will include Indigenous women living in Canada aged 18 years or older who have been screened or require screening for breast cancer, or who have been diagnosed with breast cancer. "Indigenous" will include women who identify as First Nations, Métis, or Inuit. Eligible sources must report on breast cancer risk factors, tumor characteristics, health systems access, screening, diagnosis, treatment, surveillance, or breast cancer outcomes. We will include analytic studies, surveys, case series, reviews, meta-analyses, and gray literature.

METHODS

We will conduct a search of five health sciences databases for relevant studies published in English or French from database inception onward. We will utilize dual independent screening for titles, abstracts, and full-text articles, and will utilize a similar method for gray literature sources. Data will be synthesized using a narrative approach, and outcomes of interest will be compared with data from the general breast cancer population.

REGISTRATION

Open Science Framework https://osf.io/xkde5.

Can Studying Genetically Predisposed Individuals Inform Prevention Strategies for RA?

Rheumatoid arthritis (RA) is a prevalent autoimmune disorder in which complex genetic predisposition interacts with multiple environmental factors to precipitate chronic and progressive immune-mediated joint inflammation. Currently, in most affected individuals, ongoing suppression of the inflammation is required to prevent irreversible damage and functional loss. The delineation of a protracted preclinical period in which autoimmunity is initially established and then evolves to become pathogenic provides unprecedented opportunities for interventions that have the potential to prevent the onset of this lifelong disease. Clinical trials aimed at assessing the impact of specific prevention strategies require the identification of individuals who are at high risk of future RA development. Currently, these risk factors include a strong family history of RA, and the detection of circulating RA-associated autoantibodies, particularly anti-citrullinated protein antibodies (ACPA). Yet, even in such individuals, there remains considerable uncertainty about the likelihood and the timeframe for future disease development. Thus, individuals who are approached to participate in such clinical trials are left weighing the risks and benefits of the prevention measures, while having large gaps in our current understanding. To address this challenge, we have undertaken longitudinal studies of the family members of Indigenous North American RA patients, this population being known to have a high prevalence of RA, early age of onset, and familial clustering of cases. Our studies have indicated that the concepts of "risk" and "prevention" need to be communicated in a culturally relevant manner, and proposed prevention interventions need to have an appropriate balance of effectiveness, safety, convenience, and cultural acceptability. We have focused our proposed prevention studies on immunomodulatory/anti-inflammatory nutritional supplements that appear to strike such a complex balance.

Conducting decolonizing research and practice with Australian First Nations to close the health gap

The purpose of this paper is to highlight a perspective for decolonizing research with Australian First Nations and provide a framework for successful and sustained knowledge translation by drawing on the recent work conducted by a research group, in five remote communities in North-Western Australia. The perspective is discussed in light of national and international calls for meaningful and dedicated engagement with First Nations people in research, policy and practice, to help close the health gap between First Nations and other Australians.

Outcomes of a culturally informed weight-loss competition for New Zealand Indigenous and Pacific peoples: a quasi-experimental trial

Background

Reducing obesity prevalence among marginalised subgroups with disproportionately high obesity rates is challenging. Given the promise of incentives and group-based programmes we trialled a culturally tailored, team-based weight-loss competition with New Zealand Māori (Indigenous) and Pacific Island people.

Methods

A quasi-experimental 12-months trial was designed. The intervention consisted of three six-months competitions, each with seven teams of seven members. Eligible participants were aged 16 years and older, with a BMI ≥30 kg/m² and being at risk of or already diagnosed with type-2 diabetes or cardiovascular disease. Height, weight and waist circumference were measured at baseline, 6 and 12 months.

Results

Recruitment of a control group (n = 29) versus the intervention (n = 132) was poor and retention rates were low (52 and 27% of intervention participants were followed-up at six and 12 months, respectively). Thus, analysis of the primary outcome of individual percentage weight loss was restricted to the 6-months follow-up data. Although not significant, the intervention group appeared to lose more weight than the control group, in both the intention to treat and complete-case analyses.

Conclusions

The intervention promoted some behaviour change in eating behaviours, and a resulting trend toward a reduction in waist circumference.

Trial registration

ACTRN12617000871347 Registered 15/6/2017 Retrospectively registered.

Supplementary Information

The online version contains supplementary material available at 10.1186/s40795-021-00457-9.

A Collaborative Indigenous-non-Indigenous Partnership Approach to Understanding Participant Experiences of a Community-Based Healthy Lifestyles Program

We describe the approach of an Indigenous-non-Indigenous research partnership in the context of a qualitative study which aimed to understand barriers and facilitators to engagement in a community-based healthy lifestyles program in Aotearoa/New Zealand. Informed by Kaupapa Māori research principles and by "Community-Up" research values, this collaborative approach between the mixed Māori-non-Māori research team effectively engaged with Māori and non-Māori families for in-depth interviews on participant experience, including with non-service users. "Community-Up" research principles allowed for a respectful process which upheld the mana (status, dignity) of the interview participants and the research team. Challenges included maintaining flexibility in our conceptions of ethnicity to reflect the complexity of modern family life in Aotearoa/New Zealand. We were committed to ongoing communication, awareness, and attention to the relationships that formed the basis of our research partnership, which allowed effective navigation of challenges and was critical to the study's success.

Inequities in people with gout: a focus on Māori (Indigenous People) of Aotearoa New Zealand

Health equity can be defined as the absence of systematic disparities in health between more and less advantaged social groups. Gout is one of the most common forms of arthritis and disproportionally affects Indigenous peoples, including Māori in Aotearoa New Zealand. Inequities in gout management are well documented and clearly evidenced in Indigenous populations. For example, while gout occurs at a younger age and is more severe in Māori, there is less regular dispensing of urate-lowering therapies. Indigenous peoples are also under-represented in clinical trials. Herein, we will review inequities in gout using Aoteoaroa New Zealand as an example. We will explore reasons for health inequities and challenges that need to be faced to achieve health equity.

Participants' and caregivers' experiences of a multidisciplinary programme for healthy lifestyle change in Aotearoa/New Zealand: a qualitative, focus group study

OBJECTIVE

Child and adolescent obesity continues to be a major health issue internationally. This study aims to understand the views and experiences of caregivers and participants in a child and adolescent multidisciplinary programme for healthy lifestyle change.

DESIGN

Qualitative focus group study.

SETTING

Community-based healthy lifestyle intervention programme in a mixed urban-rural region of Aotearoa/New Zealand.

PARTICIPANTS

Parents/caregivers (n=6) and children/adolescents (n=8) who participated in at least 6 months of an assessment and weekly session, family-based community intervention programme for children and adolescents affected by obesity.

RESULTS

Findings covered participant experiences, healthy lifestyle changes due to participating in the programme, the delivery team, barriers to engagement and improvements. Across these domains, four key themes emerged from the focus groups for participants and their caregivers relating to their experience: knowledge-sharing, enabling a family to become self-determining in their process to achieve healthy lifestyle change; the importance of connectedness and a family-based programme; the sense of a collective journey and the importance of a nonjudgemental, respectful welcoming environment. Logistical challenges and recommendations for improvement were also identified.

CONCLUSIONS

Policymakers need to consider the experiences of participants alongside quantitative outcomes when informing multidisciplinary intervention programmes for children and adolescents affected by obesity.Trial registration number Australian New Zealand Clinical Trials Registry (ANZCTR):12611000862943; Post-results.

Challenges to conducting randomised controlled trials with adults with intellectual disabilities: Experiences of international experts

BACKGROUND

Globally, conducting randomised controlled trials can be a complex endeavour. The complexity increases when including participants with cognitive or intellectual disabilities. A fuller understanding of the barriers and challenges that can be expected in such trials may help researchers to make their trials more inclusive for people with disabilities.

METHOD

Semi-structured interviews were conducted with twelve international trial experts.

RESULTS

Eight themes emerged relating to challenges linked to: 1) participant co-morbidities, 2) participant ability levels, 3) ethics and consent, 4) the RCT methodology, 5) gatekeeping, 6) staff turnover, 7) lack of technical understanding and 8) attitudes and perceptions.

CONCLUSION

Conducting trials with cognitively disabled participants can pose unique challenges although many can be overcome with 'reasonable adjustments'. Challenges that are harder to overcome are attitudes and perceptions that people (professional staff, funding bodies, carers or fellow researchers) hold towards the utility of conducting trials with cognitively disabled populations.

Using Community-Based Participatory Research to Design, Conduct, and Evaluate Randomized Controlled Trials with American Indian Communities

Purpose and Objectives

Academic literature indicates a need for more integration of Indigenous and colonial research systems in the design, implementation, and evaluation of randomized controlled trials (RCTs) with American Indian communities. In this article, we describe ways to implement RCTs with Tribal Nations using community-based participatory research (CBPR) principles and practices.

Intervention Approach

We used a multiple case study research design to examine how Tribal Nations and researchers collaborated to develop, implement, and evaluate CBPR RCTs.

Evaluation Methods

Discussion questions within existing tribal–academic partnerships were developed to identify the epistemologic, methodologic, and analytic strengths and challenges of 3 case studies.

Results

We identified commonalities that were foundational to the success of CBPR RCTs with Tribal Nations. Long-standing community–researcher relationships were critical to development, implementation, and evaluation of RCTs, although what constituted success in the 3 CBPR RCTs was diverse and dependent on the context of each trial. Respect for the importance of diverse knowledge systems that account for both Indigenous knowledge and colonial science also contributed to the success of the RCTs.

Implications for Public Health

Tribal–academic partnerships using CBPR RCTs must include 1) establishing trusted CBPR partnerships and receiving tribal approval before embarking on RCTs with Tribal Nations; 2) balancing tribal community interests and desires with the colonial scientific rigor of RCTs; and 3) using outcomes that include tribal community concepts of success as well as outcomes found in standard colonial scientific research practices to measure the success of the CBPR RCTs.

Factors that impact on recruitment to randomised trials in health care: a qualitative evidence synthesis

BACKGROUND

Randomised trials (also referred to as 'randomised controlled trials' or 'trials') are the optimal way to minimise bias in evaluating the effects of competing treatments, therapies and innovations in health care. It is important to achieve the required sample size for a trial, otherwise trialists may not be able to draw conclusive results leading to research waste and raising ethical questions about trial participation. The reasons why potential participants may accept or decline participation are multifaceted. Yet, the evidence of effectiveness of interventions to improve recruitment to trials is not substantial and fails to recognise these individual decision-making processes. It is important to synthesise the experiences and perceptions of those invited to participate in randomised trials to better inform recruitment strategies.

OBJECTIVES

To explore potential trial participants' views and experiences of the recruitment process for participation. The specific objectives are to describe potential participants' perceptions and experiences of accepting or declining to participate in trials, to explore barriers and facilitators to trial participation, and to explore to what extent barriers and facilitators identified are addressed by strategies to improve recruitment evaluated in previous reviews of the effects of interventions including a Cochrane Methodology Review.

SEARCH METHODS

We searched the Cochrane Library, Medline, Embase, CINAHL, Epistemonikos, LILACS, PsycINFO, ORRCA, and grey literature sources. We ran the most recent set of searches for which the results were incorporated into the review in July 2017.

SELECTION CRITERIA

We included qualitative and mixed-methods studies (with an identifiable qualitative component) that explored potential trial participants' experiences and perceptions of being invited to participate in a trial. We excluded studies that focused only on recruiters' perspectives, and trials solely involving children under 18 years, or adults who were assessed as having impaired mental capacity.

DATA COLLECTION AND ANALYSIS

Five review authors independently assessed the titles, abstracts and full texts identified by the search. We used the CART (completeness, accuracy, relevance, timeliness) criteria to exclude studies that had limited focus on the phenomenon of interest. We used QSR NVivo to extract and manage the data. We assessed methodological limitations using the Critical Skills Appraisal Programme (CASP) tool. We used thematic synthesis to analyse and synthesise the evidence. This provided analytical themes and a conceptual model. We used the GRADE-CERQual (Confidence in the Evidence from Reviews of Qualitative research) approach to assess our confidence in each finding. Our findings were integrated with two previous intervention effectiveness reviews by juxtaposing the quantitative and qualitative findings in a matrix.

MAIN RESULTS

We included 29 studies (published in 30 papers) in our synthesis. Twenty-two key findings were produced under three broad themes (with six subthemes) to capture the experience of being invited to participate in a trial and making the decision whether to participate. Most of these findings had moderate to high confidence. We identified factors from the trial itself that influenced participation. These included how trial information was communicated, and elements of the trial such as the time commitment that might be considered burdensome. The second theme related to personal factors such as how other people can influence the individual's decision; and how a personal understanding of potential harms and benefits could impact on the decision. Finally, the potential benefits of participation were found to be key to the decision to participate, namely personal benefits such as access to new treatments, but also the chance to make a difference and help others. The conceptual model we developed presents the decision-making process as a gauge and the factors that influence whether the person will, or will not, take part.

AUTHORS' CONCLUSIONS

This qualitative evidence synthesis has provided comprehensive insight into the complexity of factors that influence a person's decision whether to participate in a trial. We developed key questions that trialists can ask when developing their recruitment strategy. In addition, our conceptual model emphasises the need for participant-centred approaches to recruitment. We demonstrated moderate to high level confidence in our findings, which in some way can be attributed to the large volume of highly relevant studies in this field. We recommend that these insights be used to direct or influence or underpin future recruitment strategies that are developed in a participant-driven way that ultimately improves trial conduct and reduces research waste.

Determining barriers and facilitators to engagement for families in a family-based, multicomponent healthy lifestyles intervention for children and adolescents: a qualitative study

OBJECTIVES

Recruitment and retention in child and adolescent healthy lifestyle intervention services for childhood obesity is challenging, and inequalities across social groups are persistent. This study aimed to understand the barriers and facilitators to engagement in a multicomponent assessment-and-intervention healthy lifestyle programme for children and their families, based in the home and community.

DESIGN

Qualitative interview-based study of past users (n=76) of a family-based multicomponent healthy lifestyle programme in a mixed urban-rural region of New Zealand. Semistructured, home-based interviews were conducted and thematically analysed with peer debriefing for validity.

PARTICIPANTS

Families were selected through stratified random sampling to include a range of levels of engagement, including those who declined their referral, with equal numbers of interviews with Indigenous and non-Indigenous families.

RESULTS

Three interactive and compounding determinants were identified as influencing engagement in Whānau Pakari: acute and chronic life stressors, societal norms of weight and body size and historical experiences of healthcare. These determinants were present across societal, system and healthcare service levels. A negative referral experience to Whānau Pakari often resulted in participants declining further input or disengaging from the programme. A fourth domain, respectful and compassionate healthcare, was identified as a mitigator of these three themes, facilitating participant engagement despite previous negative experiences.

CONCLUSIONS

While participant engagement in healthy lifestyle programmes is affected by determinants which appear to operate outside immediate service provision, the programme is an opportunity to acknowledge past instances of stigma and the wider challenges of healthy lifestyle change. The experience of the referral to Whānau Pakari is important for setting the scene for future engagement in the programme. Respectful, compassionate care is critical to enhanced retention in multidisciplinary healthy lifestyle programmes and ongoing engagement in healthcare services overall.

Recognition and Management of Protracted Bacterial Bronchitis in Australian Aboriginal Children: A Knowledge Translation Approach

BACKGROUND

Chronic wet cough in children is the hallmark symptom of protracted bacterial bronchitis (PBB) and if left untreated can lead to bronchiectasis, which is prevalent in Indigenous populations. Underrecognition of chronic wet cough by parents and clinicians and underdiagnosis of PBB by clinicians are known.

RESEARCH QUESTION

We aimed to improve recognition and management of chronic wet cough in Aboriginal children using knowledge translation (KT), a methodologic approach that can be adapted for use in Indigenous contexts to facilitate effective and sustained translation of research into practice.

STUDY DESIGN AND METHODS

A mixed-methods KT study undertaken at a remote-based Aboriginal primary medical service (February 2017 to December 2019). Our KT strategy included the following: (1) culturally secure (ie, ensuring Aboriginal people are treated regarding their unique cultural needs and differences) knowledge dissemination to facilitate family health seeking for chronic wet cough in children, and (2) an implementation strategy to facilitate correct diagnosis and management of chronic wet cough and PBB by physicians.

RESULTS

Post-KT, health seeking for chronic wet cough increased by 184% (pre = eight of 630 children [1.3%], post = 23 of 636 children [3.6%]; P = .007; 95% CI, 0.7%-4.0%). Physician proficiency in management of chronic wet cough improved significantly as reflected by improved chronic cough-related quality of life (P < .001; 95% CI, 0.8-3.0) and improved physician assessment of cough quality (P < .001; 95% CI, 10.4%-23.0%), duration (P < .001; 95% CI, 11.1%-24.1%), and appropriate antibiotic prescription (P = .010; 95% CI, 6.6%-55.7%).

INTERPRETATION

Health seeking for children with chronic wet cough can be facilitated through provision of culturally secure health information. Physician proficiency in the management of PBB can be improved with KT strategies which include training in culturally informed management, leading to better health outcomes. Comprehensive strategies that include both families and health systems are required to ensure that chronic wet cough in children is detected and optimally managed.

Tobacco smoking in three “left behind” subgroups: indigenous, the rainbow community and people with mental health conditions

Purpose

This paper aims to investigate the extent to which three subgroups – people with mental health conditions, people belonging to sexual minority and gender groups and Indigenous peoples – have been “left behind” by countries implementing the World Health Organization’s Framework Convention on Tobacco Control.

Design/methodology/approach

A general review of electronic bibliographical databases to provide an overview of smoking prevalence among the three groups and interventions designed specifically to reduce their smoking rates.

Findings

Although explanations and specific rates differ, two trends are consistent across all three groups. First, information reported in the past two decades suggests that smoking prevalence is disproportionately high among people with mental health conditions, and in the rainbow and indigenous communities. Second, most cessation programmes are targeted at majority politically dominant groups, missing opportunities to reduce smoking rates in these minority communities.

Research limitations/implications

There is a general dearth of data preventing detailed analysis. Better data collection efforts are required. Trials to identify effective smoking reduction interventions for marginalised groups are needed.

Social implications

It is socially unjust that these groups are being systematically ignored by tobacco control initiatives. A failure to equitably reduce tobacco harms among all groups across society has contributed to the perceived concentration of smoking in some subgroups. The increasing stigmatisation of people who smoke then adds a marginality, compounding the negative effects associated with belonging to a marginalised group. Ongoing marginalisation of these groups is an important determinant of smoking.

Originality/value

Cross-case analysis of neglected subgroups with disproportionately high smoking rates suggests social marginalisation is a shared and important determinant of smoking prevalence.

Why do patients take part in research? An overview of systematic reviews of psychosocial barriers and facilitators

BACKGROUND

Understanding why people take part in health research is critical to improve research efficiency and generalisability. The aim of this overview of systematic reviews was to identify psychosocial determinants of research participation and map them to psychological theory and empirical recruitment research, to identify effective strategies to increase research participation.

METHODS

Qualitative and quantitative systematic reviews were systematically identified. No date or language limits were applied. Two reviewers independently selected reviews. Methodological quality was rated using AMSTAR, and poor-quality reviews (scoring 0-3) were excluded. Barriers and facilitators were coded to psychological theory (Theoretical Domains Framework) and empirical recruitment research (recruitment interventions that had been subjected to randomised controlled trial evaluation).

RESULTS

We included 26 systematic reviews (429 unique primary studies), covering a wide range of patient populations and health settings. We identified five groups of facilitators, of which three were dominant (potential for personal benefit, altruism, trust) and appear to be relevant across research setting and design. We identified nine groups of barriers, which were more dependent on the particular study (context, population, design). Two determinants (participant information, social influences) were found to be both barriers and facilitators. Barriers and facilitators could be coded to the Motivation and Opportunity components of the Theoretical Domains Framework; only one was coded to a Capability component. There was some overlap between psychosocial determinants and empirical recruitment research, but some barriers and facilitators had not been tested at all.

CONCLUSIONS

Identifying effective recruitment strategies could increase the efficiency and generalisability of primary research. We identified a number of barriers and facilitators that could be addressed by researchers. There is a need for more research to identify effective recruitment strategies that draw on the psychosocial facilitators and barriers identified in this overview.

Historical Trauma and American Indian/Alaska Native Youth Mental Health Development and Delinquency

Health disparities in American Indian/Alaska Native (AI/AN) youth are well documented in the literature, as AI/AN youth appear to be more likely to experience trauma and engage in high-risk behavior, such as substance misuse and risky sexual behavior. These youth also appear disproportionally affected by the criminal justice system. Scholars contend that much of these disparities can be traced back to the history of colonization of Indigenous peoples and the transgenerational effects of forced suppression of cultural ideology. This paper reviews the relevant literature on AI/AN youth mental and behavioral health, and this author highlights studies which examine the plausible relation between historical trauma and contemporary AI/AN youth mental health and delinquency. This author proposes that future research should target the high number of AI/AN youths in juvenile justice settings given that these youths appear neglected in current research.

Noninvasive Detection of Antibodies to Human T-Cell Lymphotropic Virus Types 1 and 2 by Use of Oral Fluid

Human T-lymphotropic viruses type 1 and 2 (HTLV-1/2) are prevalent in endemic clusters globally, and HTLV-1 infects at least 5 to 10 million individuals. Infection can lead to inflammation in the spinal cord, resulting in HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP), or adult T cell leukemia/lymphoma (ATL). Obtaining venous blood for serological screening, typically performed using enzyme immunoassays (EIAs), is invasive, sometimes socially unacceptable, and has restricted large-scale seroprevalence studies. Collecting oral fluid (OF) is a noninvasive alternative to venesection. In this study, an IgG antibody capture EIA was developed and validated to detect anti-HTLV-1/2 IgG in OF. OF and plasma specimens were obtained from seropositive HTLV-1/2-infected patients attending the National Centre for Human Retrovirology (n = 131) and from HTLV-1/2-uninfected individuals (n = 64). The assay showed good reproducibility and high diagnostic sensitivity (100%) and specificity (100%) using both OF and plasma. The Murex HTLV I+II commercial assay was evaluated and did not detect anti-HTLV-1/2 IgG in 14% (5/36) of OF specimens from seropositive donors. The reactivities of OF and plasma in the IgG capture correlated strongly (r = 0.9290) and were not significantly affected by delayed extraction when held between 3°C and 45°C for up to 7 days to simulate field testing. The use of OF serological screening for HTLV-1/2 infection could facilitate large-scale seroprevalence studies, enabling active surveillance of infection on a population level.

Barriers and facilitators to the implementation of brief interventions targeting smoking, nutrition, and physical activity for indigenous populations: a narrative review

Objective

This narrative review aimed to identify and categorize the barriers and facilitators to the provision of brief intervention and behavioral change programs that target several risk behaviors among the Indigenous populations of Australia, Canada, and New Zealand.

Methods

A systematic database search was conducted of six databases including PubMeD, Embase, CINAHL, HealthStar, PsycINFO, and Web of Science. Thematic analysis was utilized to analyze qualitative data extracted from the included studies, and a narrative approach was employed to synthesize the common themes that emerged. The quality of studies was assessed in accordance with the Joanna Briggs Institute’s guidelines and using the software SUMARI – The System for the Unified Management, Assessment and Review of Information.

Results

Nine studies were included. The studies were classified at three intervention levels: (1) individual-based brief interventions, (2) family-based interventions, and (3) community-based-interventions. Across the studies, selection of the intervention level was associated with Indigenous priorities and preferences, and approaches with Indigenous collaboration were supported. Barriers and facilitators were grouped under four major categories representing the common themes: (1) characteristics of design, development, and delivery, (2) patient/provider relationship, (3) environmental factors, and (4) organizational capacity and workplace-related factors. Several sub-themes also emerged under the above-mentioned categories including level of intervention, Indigenous leadership and participation, cultural appropriateness, social and economic barriers, and design elements.

Conclusion

To improve the effectiveness of multiple health behavior change interventions among Indigenous populations, collaborative approaches that target different intervention levels are beneficial. Further research to bridge the knowledge gap in this topic will help to improve the quality of preventive health strategies to achieve better outcomes at all levels, and will improve intervention implementation from development and delivery fidelity, to acceptability and sustainability.

What does it mean to conduct participatory research with Indigenous peoples? A lexical review

BACKGROUND

To better understand and promote public health, participatory research with Indigenous peoples represents recommended practice, worldwide. However, due to the different ways such research is referred to, described, and used, it is unclear what might (and might not) warrant the term when collaborating with Indigenous peoples. As such, this article expands conceptual understandings of participatory research with Indigenous peoples, across timelines and regions.

METHOD

Following a systematic search of 29 academic databases in April 2018, a lexical analysis of the methods sections was conducted, which were sourced from 161 publications across 107 journals.

RESULTS

The active involvement of Indigenous peoples in research that is expressly participatory is limited across all project phases. This might be because the ways in which Indigenous peoples were involved throughout were not reported - however, it might also be because Indigenous peoples were not involved in all project phases. Furthermore, descriptions differ by study location and publication timeframe - notably, studies in the region of the Americas chiefly refer to pandemics, surveyors, and art; and those published in the last two decades have given primacy to artifacts of interest.

CONCLUSIONS

Findings from this corpus of data suggest participatory research with Indigenous peoples is not always described across different project phases; furthermore, it differs according to study location and publication timeframe. This offers considerable opportunity to further this important research area via alternative methodologies that award primacy to Indigenous expertise and agency.

'We're here to listen and help them as well': a qualitative study of staff and Indigenous patient perceptions about participating in social and emotional wellbeing research at primary healthcare services

BACKGROUND

Research can inform culturally-appropriate care to strengthen social and emotional wellbeing (SEWB) among Aboriginal and Torres Strait Islander (hereafter, the term 'Indigenous Peoples' is respectfully used and refers to all Aboriginal and/or Torres Strait Islander Peoples of Australia). We acknowledge the cultural diversity of Australia's Indigenous First Peoples and they do not represent a homogenous group.) (hereafter Indigenous) Peoples. We explore the perspectives of primary healthcare staff and Indigenous patients about their willingness to and experiences participating in SEWB research.

METHOD

Process evaluation using grounded theory approaches of Getting it Right: The validation study, a national validation designed Indigenous SEWB research project (N = 500). Primary healthcare staff (n = 36) and community members (n = 4) from nine of ten primary healthcare services involved with the research project completed qualitative semi-structured interviews. Interview data were triangulated with participant feedback (responses to structured questions and free-text feedback collected during Getting it Right), study administrative data (participant screening logs, communication logs, study protocol, deviation logs and ethics correspondence) and interviewer field notes.

RESULTS

Three themes about staff, patient and community perspectives concerning research participation developed: (1) considering the needs, risk, preferences and impact of participation in research for staff, patients and community; (2) building staff confidence speaking to patients about research and SEWB problems and (3) patients speaking openly about their SEWB. Some staff described pressure to ensure patients had a positive experience with the research, to respond appropriately if patients became upset or SEWB problems were identified during interviews, or due to their dual role as community member and researcher. Patients and staff reported that patients were more likely to participate if they knew the staff outside of the service, especially staff with a shared cultural background, and they perceived SEWB as a community priority. Staff reported their skills speaking to patients about the research and SEWB improved during the research, which built their confidence. Contrary to staff preconceptions, staff and patients reported that many patients appreciated the opportunity to speak about their SEWB and contributing to research that may eventually enhance SEWB in their community.

CONCLUSION

Our research project was considered acceptable by most staff and patients. The positive outcomes reported by staff and feedback from patients highlights the importance of providing opportunities for people to speak about their SEWB and for research-informed SEWB PHC care.

TRIAL REGISTRATION

Getting it Right is registered on ANZCTR12614000705684 .

Risk factors and mitigation of influenza among Indigenous children in Australia, Canada, United States, and New Zealand: a scoping review

AIM

This review considers prominent risk factors and mitigation strategies of influenza among Indigenous children.

METHODS

Seven electronic databases were searched from the period of 2004-2017 to locate articles discussing influenza among Indigenous children in the developed circumpolar nations of Australia, Canada, United States, and New Zealand. Articles selected for inclusion discussed influenza among Indigenous children as either individuals or as a part of a community. Ancestry searches of articles meeting the review criteria were also undertaken to discern seminal research in this topic area.

RESULTS

From the 39 primary research studies included, marked risk factors and mitigation strategies of influenza among Indigenous children were identified using inductive analysis. Notable risk factors included age under 2 years, cigarette smoke exposure, presence of a chronic illness, and crowded living conditions. Successful mitigation of influenza for Indigenous children included strategies to improve vaccine coverage, provision of health education, and policy change.

CONCLUSION

In the past, the impact of influenza upon Indigenous communities has been devastating for both children and their families. By utilizing existing public health infrastructure and collaborating with culturally unique Indigenous groups, preventive action for Indigenous children at significant risk of contracting influenza can be realized.

Perspectives on communication and engagement with regard to collecting biospecimens and family health histories for cancer research in a rural Alaska Native community

Precision medicine initiatives, such as Cancer Breakthrough 2020, promise to improve cancer outcomes by tailoring treatment to an individual's genes, environment, and lifestyle. This promise will fall short unless researchers successfully engage diverse communities, including those with histories of medical and research abuse. We examined a rural Alaska Native community's viewpoints about biospecimen collection and storage; interest and recall in reporting family health history; and interest and engagement in biospecimen collection for conducting a genetic test for cancer. In 2014, four focus groups were held with 28 adult Alaska Native rural community members. Thematic analysis was performed after establishing a coding scheme by team consensus. Study participants shared interest in engaging in genetic cancer research and suggested ways to improve community engagement in research. These included transparency and continuous communication with researchers at all stages of the research, clear communication about the intent of the research, and that research and results take into consideration the community's needs. These suggestions may be beneficial for future efforts to expand precision medicine research in Alaska Native communities and similar, diverse populations.

How can we get Iraq- and Afghanistan-deployed US Veterans to participate in health-related research? Findings from a national focus group study

Background

Research participant recruitment is often fraught with obstacles. Poor response rates can reduce statistical power, threaten both internal and external validity, and increase study costs and duration. Military personnel are socialized to a specific set of laws, norms, traditions, and values; their willingness to participate in research may differ from civilians. The aims of this study were to better understand the views of United States (US) Veterans who served in Operation Enduring Freedom (OEF)/ Operation Iraqi Freedom (OIF) on research and motivators for participating in research to inform recruitment for a planned observational study of respiratory health in OEF/OIF Veterans.

Methods

We conducted 10 focus groups in a purposive sample of OEF/OIF Veterans (n = 89) in five US cities in 2015. Key topics included: reasons for participating or declining to participate in health-related research, logistics around study recruitment and conduct, compensation, written materials, and information sharing preferences for study results. Two authors independently coded the data using template analysis.

Results

Participants identified three criteria that motivated a decision to participate in health-related research: 1) adequate compensation, 2) desire to help other Veterans, and 3) significance and relevance of the research topic. For many, both sufficient compensation and a sense that the study would help other Veterans were critical. The importance of transparency arose as a key theme; Veterans communicated that vague language about study aims or procedures engendered distrust. Lastly, participants expressed a desire for studies to communicate results of their specific health tests, as well as overall study findings, back to research participants.

Conclusions

OEF/OIF Veterans described trust, transparent communication, and respect as essential characteristics of research in which they would be willing to participate. Additional studies are needed to determine whether our results generalize to other US Veterans; nevertheless, our results highlight precepts that have been reported as important for recruitment in other populations. Researchers may benefit from using community-engaged research methods to seek feedback on recruitment materials and strategies prior to initiating research. For costly studies targeting a large sample (i.e. in the thousands), it may be important to test a variety of recruitment strategies.

Electronic supplementary material

The online version of this article (10.1186/s12874-018-0546-2) contains supplementary material, which is available to authorized users.

Barriers and enablers to patient recruitment for randomised controlled trials on treatment of chronic wounds: A systematic review

Randomised controlled trials represent the gold standard in intervention efficacy evaluation. However, suboptimal recruitment affects completion and the power of a therapeutic trial in detecting treatment differences. We conducted a systematic review to examine the barriers and enablers to patient recruitment for randomised controlled trials on chronic wound treatment. Review registration was under PROSPERO 2017:CRD42017062438. We conducted a systematic search of Ovid MEDLINE, EBSCOhost CINAHL, Ovid Cochrane Library, Ovid EMBASE, and Ovid PsycINFO databases in June 2017 for chronic wound treatment randomised controlled trials. Twenty-seven randomised controlled trials or qualitative studies met the inclusion criteria. Among the 24 randomised controlled trials, 21 were assessed as low quality in relation to recruitment, and 3 were assessed as high quality. All 27 studies reported barriers to recruitment in chronic wound randomised controlled trials. The reported barriers to recruitment were: study-related, patient-related, clinician-related, health system-related, and/or operational-related. No study reported recruitment enablers. To enhance randomised controlled trial recruitment, we propose the need for improved integration of research and clinical practice. To alleviate the problems arising from inadequate reporting of randomised controlled trials, the Consolidated Standards of Reporting Trials Statement could include an additional item on recruitment barriers. This approach will allow for increased awareness of the potential barriers to recruitment for Randomised controlled trials (RCTs) in both wound management and other health care research.

Cancer survival among Alaska Native people

BACKGROUND

Recent cancer survival trends among American Indian and Alaska Native (AN) people are not well understood; survival has not been reported among AN people since 2001.

METHODS

This study examined cause-specific survival among AN cancer patients for lung, colorectal, female breast, prostate, and kidney cancers. It evaluated whether survival differed between cancers diagnosed in 1992-2002 (the earlier period) and cancers diagnosed in 2003-2013 (the later period) and by the age at diagnosis (<65 vs ≥65 years), stage at diagnosis (local or regional/distant/unknown), and sex. Kaplan-Meier and Cox proportional hazards models were used to estimate univariate and multivariate-adjusted cause-specific survival for each cancer.

RESULTS

An improvement was observed in 5-year survival over time from lung cancer (hazard ratio [HR] for the later period vs the earlier period, 0.83; 95% confidence interval [CI], 0.72-0.97), and a marginally nonsignificant improvement was observed for colorectal cancer (HR, 0.81; 95% CI, 0.66-1.01). Site-specific differences in survival were observed by age and stage at diagnosis.

CONCLUSIONS

This study presents the first data on cancer survival among AN people in almost 2 decades. During this time, AN people have experienced improvements in survival from lung and colorectal cancers. The reasons for these improvements may include increased access to care (including screening) as well as improvements in treatment. Improving cancer survival should be a priority for reducing the burden of cancer among AN people and eliminating cancer disparities. Cancer 2018;124:2570-7. © 2018 American Cancer Society.

Exercise to Support Indigenous Pregnant Women to Stop Smoking: Acceptability to Māori

Objectives Smoking during pregnancy is harmful for the woman and the unborn child, and the harms raise risks for the child going forward. Indigenous women often have higher rates of smoking prevalence than non-indigenous. Exercise has been proposed as a strategy to help pregnant smokers to quit. Māori (New Zealand Indigenous) women have high rates of physical activity suggesting that an exercise programme to aid quitting could be an attractive initiative. This study explored attitudes towards an exercise programme to aid smoking cessation for Māori pregnant women. Methods Focus groups with Māori pregnant women, and key stakeholder interviews were conducted. Results Overall, participants were supportive of the idea of a physical activity programme for pregnant Māori smokers to aid smoking cessation. The principal, over-arching finding, consistent across all participants, was the critical need for a Kaupapa Māori approach (designed and run by Māori, for Māori people) for successful programme delivery, whereby Māori cultural values are respected and infused throughout all aspects of the programme. A number of practical and environmental barriers to attendance were raised including: cost, the timing of the programme, accessibility, transport, and childcare considerations. Conclusions A feasibility study is needed to design an intervention following the suggestions presented in this paper with effort given to minimising the negative impact of barriers to attendance.