A successful approach to minimizing attrition in racial/ethnic minority, low-income populations

Practice, beliefs and intent in influenza vaccination among Hispanic patients during the pandemic: An interventional study

BACKGROUND

The largest minority in the United States, Hispanic populations are also one of the least vaccinated groups. Promoting vaccine confidence and uptake among Hispanics is critical to reducing health inequalities.

METHODS

We investigated the effectiveness of an intervention that combined a bilingual flu vaccine brochure plus culturally tailored, primary care physician (PCP) led influenza vaccination Question and Answer (Q&A) videos. We measured patients' vaccination attitudes/beliefs, practices, and intentions.

RESULTS

In total, 693 Hispanic patients participated in the baseline survey and 199 took the follow-up survey. At baseline, 32.7 % did not get the flu vaccine in the previous flu season. Disagreement of or feeling unsure about the statement "vaccines are a good thing" was 20.2 %. Univariate analysis showed that lower household income was negatively associated with patients' flu vaccine uptake (55.7 % with < $75,000 household income vs. 66.7 % with $75,000 or above, p = 0.04). After the intervention, 78.4 % agreed or strongly agreed that they would get the flu vaccine, compared to 50.3 % at baseline. Also, 87.4 % of the respondents agreed or strongly agreed that "vaccines are a good thing" and 39.6 % have improved vaccine beliefs. Of all who didn't get a flu vaccine, 54.5 % agreed or strongly agreed to get one in the next season; and of those who didn't get a COVID vaccine at baseline, 38.5 % would like to get a flu vaccine in the future. Regarding positive changes on flu vaccination intent, the intervention worked the best among those who had never graduated high schools (Odds Ratio (OR) = 16.72, 95 %CI: 2.44-114.71, p = 0.004) and those whose beliefs in vaccines increased following the intervention (OR = 3.57, 95 %CI: 1.03-12.38, p = 0.045).

CONCLUSIONS

A low-cost physician-led, culturally tailored, bilingual, and low-cost intervention improved Hispanic patients' positive vaccine beliefs and intent to be vaccinated.

Modality-level obstacles and initiatives to improve representation in fetal, infant, and toddler neuroimaging research samples

Fetal, infant, and toddler (FIT) neuroimaging researchers study early brain development to gain insights into neurodevelopmental processes and identify early markers of neurobiological vulnerabilities to target for intervention. However, the field has historically excluded people from global majority countries and from marginalized communities in FIT neuroimaging research. Inclusive and representative samples are essential for generalizing findings across neuroimaging modalities, such as magnetic resonance imaging, magnetoencephalography, electroencephalography, functional near-infrared spectroscopy, and cranial ultrasonography. These FIT neuroimaging techniques pose unique and overlapping challenges to equitable representation in research through sampling bias, technical constraints, limited accessibility, and insufficient resources. The present article adds to the conversation around the need to improve inclusivity by highlighting modality-specific historical and current obstacles and ongoing initiatives. We conclude by discussing tangible solutions that transcend individual modalities, ultimately providing recommendations to promote equitable FIT neuroscience.

Towards better enrollment decision-making for perinatal clinical research: Reconsidering recruitment and consent processes to support family values and preferences

OBJECTIVE

Whether to participate in clinical research is a special type of decision for parents with infants in the neonatal intensive care unit (NICU). Parents often report negative experiences being approached for NICU research and researchers struggle to enroll a representative sample. We consider how enrollment decision-making might be better supported by integrating learnings from clinical decision-making.

FINDING

Approaches to supporting decision-making about clinical research, though distinct from those for clinical decision-making, share many similarities. We consider ways researchers may incorporate advances in knowledge about clinical decision-making to: (a) improve documents used for regulatory purposes (e.g., consent forms), and (b) better support relationship building between researchers and parents considering research enrollment.

CONCLUSION

Researchers may benefit from considering approaches to enrollment decision-making that draw on clinical decision-making methods. Future work should assess the impact of such approaches on parental experiences of recruitment; enrollment and retention rates; and representative inclusion of NICU populations.

Harnessing Mother's Strengths to THRIVE in Obesity Prevention Efforts: A Qualitative Study

Objectives

Infancy is a critical period for preventing obesity and health disparities. This study reports on the acceptability of a responsive parenting obesity prevention intervention (THRIVE) delivered via integrated behavioral health in a pediatric primary care setting. Intervention participants were invited to participate in a focus group on the acceptability of THRIVE and suggestions for refinement with particular attention to cultural responsiveness and diversity, equity, inclusion, and accessibility (DEIA).

Methods

Eleven of 32 (34.4%) mothers participated in a 45-60 minute focus group (three groups, 3-5 participants each). Sessions utilized a semi-structured interview guide, were transcribed verbatim, and analyzed according to a thematic analytic approach.

Results

Four themes emerged: (1) Lived Experience (e.g., lived experience as a mother, navigating systemic and healthcare-related barriers, and context that shaped personal experiences with THRIVE); (2) Therapeutic Processes and Cultural Responsiveness (e.g., an appreciation of families' strengths and values by the THRIVE interventionist that facilitated engagement with THRIVE); (3) Tailored Strategy Implementation (e.g., implementation of THRIVE skills and strategies by families and how strategies were adapted or tailored to meet families' needs); (4) Future Improvements to THRIVE (e.g., proposed strategies for increased attention to DEIA and reducing participant burden).

Conclusions

Conducting qualitative research prior to Phase 2-3 trials is vital to ensuring the interventions developed, implemented, and tested are not only empirically-based, but also culturally-responsive, attentive to DEIA, acceptable and relevant. Mothers provided valuable insights surrounding participation in THRIVE, highlighting important DEIA elements of THRIVE and suggested ways to decrease burden and increase access.

The HEALthy Brain and Child Development Study (HBCD) experience: Recruiting and retaining diverse families in a longitudinal, multi-method early childhood study

The HEALthy Brain and Child Development (HBCD) Study, a multi-site prospective longitudinal cohort study, will examine human brain, cognitive, behavioral, social, and emotional development beginning prenatally and planned through early childhood. Given its aim to examine the impact of adversity and protective factors on children's outcomes, the recruitment and retention of families who have a wide diversity in experiences are essential. However, the unfortunate history of inequitable treatment of underrepresented families in research and the risks with which some participants will contend (e.g., substance use) makes their recruitment and retention in social science and neuroscience research particularly challenging. This article explores strategies that the HBCD Study has developed to recruit and retain participants, including marginalized, underserved, and hard-to-reach populations, capitalizing on the extant literature and the researchers' own experiences. In this paper, we address strategies to recruit and retain families within HBCD, including: 1) creating experiences that engender trust and promote relationships; 2) maintaining connections with participants over time; 3) ensuring appropriate compensation and supports; 4) considerations for study materials and procedures; and 5) community engagement. The implementation of these strategies may increase representation and inclusiveness, as well as improve the quality of the resulting data.

Mapping Strategies for Reaching Socioeconomically Disadvantaged Populations in Clinical Trials

Importance

Socioeconomically disadvantaged patients, such as persons with low income and those with low educational attainment, are less likely to participate in clinical trials than those with higher earnings and higher educational attainment, despite the former being more likely to have chronic medical conditions. Ways to improve the representation of socioeconomically disadvantaged patients in clinical trials deserve attention.

Objective

To examine whether current recruitment and enrollment strategies used by US clinical research sites appropriately include patients from socioeconomically disadvantaged backgrounds.

Design, Setting, and Participants

This survey study was conducted between April and July 2023. An online survey was distributed among US clinical research sites to explore their use of these strategies and the types of patient sociodemographic and socioeconomic data they collect. The survey was distributed by 13 pharmaceutical companies and 1 clinical research organization. Eight targeted strategies known to increase the recruitment and retention of socioeconomically disadvantaged participants as well as 6 general strategies to recruit and retain clinical trial participants were identified. Data analysis was performed between August and September 2023.

Main Outcomes and Measures

Proportions of for-profit vs nonprofit or governmental sites that use recruitment and retention strategies, proportions that have partnerships with community organizations that target socioeconomically disadvantaged groups, and the distribution of sociodemographic and socioeconomic data collected by sites about their patients. A χ2 test of independence was performed to assess the association between research site ownership type and levels of adoption of strategies.

Results

A total of 492 responses were collected from 381 clinical research sites in the US (219 for-profit sites [57.5%] and 162 nonprofit or governmental sites [42.5%]). Overall, compared with nonprofit or governmental sites, for-profit sites reported higher use of strategies shown to increase the recruitment and retention of socioeconomically disadvantaged populations, including always or often providing after-hours visits (84 of 173 for-profit sites [48.6%]; 22 of 123 nonprofit or governmental sites [17.9%]) and offering financial compensation (135 of 162 for-profit sites [83.3%]; 60 of 123 nonprofit or governmental sites [48.8%]). Additionally, there was an association between research site ownership type and levels of adoption of these strategies; for example, for-profit sites were more likely to provide after-hours visits (χ2 = 30.33; P < .001) and offer financial compensation (χ2 = 49.35; P < .001). Only 7.2% of for-profit sites (12 of 167) and 13.0% of nonprofit or governmental sites (16 of 123) collected information on the patient's annual income.

Conclusions and Relevance

In this survey study, we found an association between a clinical research site's ownership type (for-profit vs nonprofit or governmental) and how often it used strategies to engage socioeconomically diverse populations in clinical research. Regardless of ownership type, most clinical research sites did not collect socioeconomic information from patients. Adoption of strategies to engage socioeconomically diverse populations, particularly by nonprofit or governmental sites, may help minimize barriers to participation for socioeconomically disadvantaged patients.

Equity Concerns Across Pediatric Research Recruitment: An Analysis of Research Staff Interviews

BACKGROUND AND OBJECTIVES

Difficulty recruiting individuals from minoritized and underserved populations for clinical research is well documented and has health equity implications. Previously, we reported findings from interviews with research staff about pediatric research recruitment processes. Respondents raised equity concerns related to recruitment and enrollment of participants from minoritized, low resourced, and underserved populations. We therefore decided to perform a secondary coding of the transcripts to examine equity-related issues systematically.

METHODS

We conducted a process of secondary coding and analysis of interviews with research staff involved in recruitment for pediatric clinical research. Through consensus we identified codes relevant to equity and developed a conceptual framework including 5 stages of research.

RESULTS

We analyzed 28 interviews and coded equity-related items. We report 6 implications of our findings. First, inequitable access to clinical care is an upstream barrier to research participation. Second, there is a need to increase research opportunities where underserved and under-represented populations receive care. Third, increasing research team diversity can build trust with patients and families, but teams must ensure adequate support of all research team members. Fourth, issues related to consent processes raise institutional-level opportunities for improvement. Fifth, there are numerous study procedure-related barriers to participation. Sixth, our analysis illustrates that individuals who speak languages other than English face barriers across multiple stages.

CONCLUSIONS

Research staff members identified equity-related concerns and recommended potential solutions across 5 stages of the research process, which may guide those endeavoring to improve research recruitment for pediatric patients from minoritized and underserved populations.

Social determinants of participant recruitment and retention in a prospective cohort study of pediatric mild traumatic brain injury

Background

Prior studies have shown poor recruitment and retention of minoritized groups in clinical trials.

Objective

To examine several social determinants as predictors of consent to participate and retention as part of a prospective, longitudinal cohort study of children 8–16 with either mild traumatic brain injury (mild TBI) or orthopedic injury (OI).

Methods

Children and families were recruited during acute visits to emergency departments (ED) in two large children's hospitals in the midwestern United States for a prospective, longitudinal cohort study of children 8–16 with either mild TBI or OI.

Results

A total of 588 (mild TBI = 307; OI = 281) eligible children were approached in the ED and 315 (mild TBI = 195; OI = 120) were consented. Children who consented did not differ significantly from those who did not consent in sex or age. Consent rates were higher among Black (60.9%) and multi-racial (76.3%) children than white (45.3%) children. Among the 315 children who consented, 217 returned for a post-acute assessment (mild TBI = 143; OI = 74), a retention rate of 68.9%. Participants who were multi-racial (96.6%) or white (79.8%) were more likely to return for the post-acute visit than those who were Black (54.3%).

Conclusions

Racial differences exist in both recruitment and retention of participants in a prospective, longitudinal cohort of children with mild TBI or OI. Further work is needed to understand these differences to ensure equitable participation of minoritized groups in brain injury research.

A perspective on enhancing representative samples in developmental human neuroscience: Connecting science to society

Marginalized groups are often underrepresented in human developmental neuroscientific studies. This is problematic for the generalizability of findings about brain-behavior mechanisms, as well as for the validity, reliability, and reproducibility of results. In the present paper we discuss selection bias in cohort studies, which is known to contribute to the underrepresentation of marginalized groups. First, we address the issue of exclusion bias, as marginalized groups are sometimes excluded from studies because they do not fit the inclusion criteria. Second, we highlight examples of sampling bias. Recruitment strategies are not always designed to reach and attract a diverse group of youth. Third, we explain how diversity can be lost due to attrition of marginalized groups in longitudinal cohort studies. We provide experience- and evidence-based recommendations to stimulate neuroscientists to enhance study population representativeness via science communication and citizen science with youth. By connecting science to society, researchers have the opportunity to establish sustainable and equal researcher-community relationships, which can positively contribute to tackling selection biases.

Program, cultural and neighbourhood factors related to attrition from a community-based enriched medical home program in the United States

Attrition from clinical interventions targeting underserved populations is a substantive challenge to achieving optimal health outcomes. Our nationally recognised enriched medical home intervention (EMHI) utilised community health worker home visitation to improve health outcomes of children by engaging the entire family and removing barriers to care-seeking. Families were enrolled into the program between 2013 and 2016, and, as part of the evaluation of the program's success, we identified predictors of program completion by conducting a secondary analysis of 304 families participating in the EMHI evaluation research. Program completers finished participation in the EMHI with mutual agreement that the family can independently follow recommended care. Program non-completers were either lost to follow-up or dropped out before reaching this milestone. Data were collected using electronic medical records and validated self-report surveys to assess constructs such as social support, mental health difficulties and neighbourhood characteristics. The EMHI participants were primarily families with infants <24 months old, Medicaid-insured and Latino. In the multivariable logistic regression model, EMHI program factors as well as community factors independently predicted program continuation and retention. Specifically, families learning about newborn care or with preferred spoken language Spanish were more likely to complete the program. Participants reporting neighbourhood distrust had a greater likelihood of non-completion than others. Results underscore the importance of cultural competency and community involvement in program design and dissemination. Our findings are applicable to other home-based interventions with the goal of supporting underserved families in following recommended clinical care.

Recruitment, retention, and intervention adherence for a chronic illness self-management intervention with the Apsáalooke Nation

Recruitment, retention, and adherence within health intervention research have been understudied in Indigenous communities, where well-known health disparities exist. The purpose of this paper is to describe planned versus actual recruitment, retention, and adherence strategies and the evaluation of retention and adherence strategies for a community-based research study of a Chronic Illness (CI) self-management intervention within an Indigenous community. A Community-Based Participatory Research (CBPR) approach was used to develop and implement Báa nnilah, a culturally consonant educational intervention to improve CI self-management. Reasons for participant adherence and retention were tracked and recorded over time. A post-intervention survey assessed barriers and facilitators to intervention adherence. Overall, recruitment, retention, and adherence methods were successful in enrolling and maintaining participation. Using a CBPR approach and culturally consonant strategies may assist in meeting recruitment goals and improving sustained participation of community members, thus impacting health disparities among Indigenous communities.

Use of Diaries for Family Members of Intensive Care Unit Patients to Reduce Long-Term PTSD: A Pilot Study

Many family members whose loved ones stay in the intensive care unit (ICU) have post-traumatic stress disorder (PTSD) after the hospitalization. A mixed-methods longitudinal randomized trial studying family members of medical ICU (MICU) patients was conducted. Participants were randomized into 2 groups (intervention and control). Post-traumatic stress symptoms checklist-14 scores for the intervention group trended downward over time, but no differences were detected in PTSD risk between the intervention and control groups. The ICU experience for family members is traumatizing. A simple gesture of providing ICU diaries for them to use during the ICU stay may help reduce their emotional burden and requires further investigation.

Accrual and Retention of Diverse Patients in Psychosocial Cancer Clinical Trials

Background:

Minority and older adult patients remain underrepresented in cancer clinical trials (CCTs). The current study sought to examine sociodemographic inequities in CCT interest, eligibility, enrollment, decline motivation, and attrition across two psychosocial CCTs for gynecologic, gastrointestinal, and thoracic cancers.

Methods:

Patients were approached for recruitment to one of two interventions: (1) a randomized control trial (RCT) examining effects of a cognitive-behavioral intervention targeting sleep, pain, mood, cytokines, and cortisol following surgery, or (2) a yoga intervention to determine its feasibility, acceptability, and effects on mitigating distress. Prospective RCT participants were queried about interest and screened for eligibility. All eligible patients across trials were offered enrollment. Patients who declined yoga intervention enrollment provided reasons for decline. Sociodemographic predictors of enrollment decisions and attrition were explored.

Results:

No sociodemographic differences in RCT interest were observed, and older patients were more likely to be ineligible. Eligible Hispanic patients across trials were significantly more likely to enroll than non-Hispanic patients. Sociodemographic factors predicted differences in decline motivation. In one trial, individuals originating from more urban areas were more likely to prematurely discontinue participation.

Discussion:

These results corroborate evidence of no significant differences in CCT interest across minority groups, with older adults less likely to fulfill eligibility criteria. While absolute Hispanic enrollment was modest, Hispanic patients were more likely to enroll relative to non-Hispanic patients. Additional sociodemographic trends were noted in decline motivation and geographical prediction of attrition. Further investigation is necessary to better understand inequities, barriers, and best recruitment practices for representative CCTs.

Facilitators and barriers to pediatric clinical trial recruitment and retention in rural and community settings: A scoping review of the literature

Children in rural settings are under-represented in clinical trials, potentially contributing to rural health disparities. We performed a scoping review describing available literature on barriers and facilitators impacting participation in pediatric clinical trials in rural and community-based (nonclinical) settings. Articles identified via PubMed, CINAHL, Embase, and Web of Science were independently double-screened at title/abstract and full-text levels to identify articles meeting eligibility criteria. Included articles reported on recruitment or retention activities for US-based pediatric clinical studies conducted in rural or community-based settings and were published in English through January 2021. Twenty-seven articles describing 31 studies met inclusion criteria. Most articles reported on at least one study conducted in an urban or suburban or unspecified community setting (n = 23 articles; 85%); fewer (n = 10; 37%) reported on studies that spanned urban and rural settings or were set in rural areas. More studies discussed recruitment facilitators (n = 25 studies; 81%) and barriers (n = 19; 61%) versus retention facilitators (n = 15; 48%) and barriers (n = 8; 26%). Descriptions of recruitment and retention barriers and facilitators were primarily experiential or subjective. Recruitment and retention facilitators were similar across settings and included contacts/reminders, community engagement, and relationship-building, consideration of participant logistics, and incentives. Inadequate staff and resources were commonly cited recruitment and retention barriers. Few studies have rigorously examined optimal ways to recruit and retain rural participants in pediatric clinical trials. To expand the evidence base, future studies examining recruitment and retention strategies should systematically assess and report rurality and objectively compare relative impact of different strategies.

Analysis of reasons for loss to follow up in a prospective study in Chandigarh, India and impact from telecom changes

Objective

Mobile phones are used in research studies, to enroll and follow-up participants, collect data, and implement mHealth initiatives. We conducted a longitudinal study in a birth cohort, where infants were required to make four scheduled visits by 12 months of age. Families of those failing to attend scheduled follow-up visits, were contacted telephonically to ascertain the reasons, which were categorized as: not interested to continue participating, migrated, phone disconnected due to telecom change, or other reason.

Results

A total of 413 mother-infant dyads were enrolled. The overall attrition was 56%, with majority occurring at the first follow-up visit. This temporally coincided with a telecom service provider announcing strong incentives to switch providers. Attrition monotonically decreased at subsequent visits. The reasons were: moved away (13%), no longer interested (8%), phone disconnected (7%), and multiple other reasons (28%), the majority of whom had unreachable phones. Those who remained in the study and those lost to follow-up were similar on most demographic variables. Among common reasons for attrition in cohort studies, we experienced a new dimension introduced by telecom changes. These findings underscore the need to consider unexpected reasons for attrition in longitudinal studies, and design more robust methods to follow-up participants.

Optimizing Recruitment of Black Adolescents into Behavioral Research: A Multi-Center Study

OBJECTIVES

Adolescents of color are underrepresented in behavioral health research. Study aims were to quantify the amount and types of outreach effort needed to recruit young Black adolescents with type 1 diabetes and their primary caregiver into a clinical trial evaluating a parenting intervention and to determine if degree of recruitment difficulty was related to demographic, diabetes-related, or family characteristics.

METHODS

Data were drawn from a multi-center clinical trial. Participants (N = 155) were recruited from seven pediatric diabetes clinics. Contact log data were used to quantify both number/type of contacts prior to study enrollment as well as length of time to enrollment. Families were coded as having expedited recruitment (ER) or prolonged recruitment (PR). Baseline study data were used to compare ER and PR families on sociodemographic factors, adolescent diabetes management and health status and family characteristics such as household organization and family conflict.

RESULTS

Mean length of time to recruit was 6.6 months and mean number of recruitment contacts was 10.3. Thirty-nine percent of the sample were characterized as PR. These families required even higher levels of effort (mean of 9.9 months to recruit and 15.4 contacts). There were no significant between-group differences on any baseline variable for ER and PR families, with the exception of family income.

CONCLUSIONS

Researchers need to make persistent efforts in order to successfully enroll adolescents of color and their caregivers into clinical trials. Social determinants of health such as family resources may differentiate families with prolonged recruitment within such samples.

Engaging Caregivers and Providers of Children With Sickle Cell Anemia in Shared Decision Making for Hydroxyurea: Protocol for a Multicenter Randomized Controlled Trial

BACKGROUND

Sickle cell anemia (SCA) is a genetic blood disorder that puts children at a risk of serious medical complications, early morbidity and mortality, and high health care utilization. Until recently, hydroxyurea was the only disease-modifying treatment for this life-threatening disease and has remained the only option for children younger than 5 years. Evidence-based guidelines recommend using a shared decision-making (SDM) approach for offering hydroxyurea to children with SCA (HbSS or HbS/β0 thalassemia) aged as early as 9 months. However, the uptake remains suboptimal, likely because caregivers lack information about hydroxyurea and have concerns about its safety and potential long-term side effects. Moreover, clinicians do not routinely receive training or tools, especially those that provide medical evidence and consider caregivers' preferences and values, to facilitate a shared discussion with caregivers.

OBJECTIVE

The aim of this study is to understand how best to help parents of young children with sickle cell disease and their clinicians have a shared discussion about hydroxyurea (one that considers medical evidence and parent values and preferences).

METHODS

We designed our study to compare the effectiveness of two methods for disseminating hydroxyurea guidelines to facilitate SDM: a clinician pocket guide (ie, usual care) and a clinician hydroxyurea SDM toolkit (H-SDM toolkit). Our primary outcomes are caregiver reports of decisional uncertainty and knowledge of hydroxyurea. The study also assesses the number of children (aged 0-5 years) who were offered and prescribed hydroxyurea and the resultant health outcomes.

RESULTS

The Ethics Committee of the Cincinnati Children's Hospital Medical Center approved this study in November 2017. As of February 2021, we have enrolled 120 caregiver participants.

CONCLUSIONS

The long-term objective of this study is to improve the quality of care for children with SCA. Using multicomponent dissemination methods developed in partnership with key stakeholders and designed to address barriers to high-quality care, caregivers of patients with SCA can make informed and shared decisions about their health.

TRIAL REGISTRATION

ClinicalTrials.gov NCT03442114; https://clinicaltrials.gov/ct2/show/NCT03442114.

INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID)

DERR1-10.2196/27650.

The Turkish version of the SPPIC validated among informal caregivers with a Turkish immigrant background

Background

This study assesses the internal consistency and known group validity of the Turkish version of the SPPIC, a measurement instrument to assess the self perceived pressure from informal care in family caregivers of people with dementia that was originally in Dutch.

Methods

The feasibility, comprehensibility and appropriateness of the Turkish SPPIC were assessed during a pilot test. Internal consistency was examined based on data from 117 family caregivers with a Turkish immigrant background by calculating Cronbach’s alpha and by conducting a single-factor Confirmatory Factor Analysis (CFA). Known group validity was determined to obtain an understanding of the validity of the translated instrument, testing differences in the self-perceived pressure from informal care, depending on frequency of caregiving, living with a person with dementia and level of education.

Results

The pilot test showed that the translated SPPIC was considered to be feasible, comprehensible and appropriate. The internal consistency appeared to be strong (Cronbach’s alpha: 0.94). The CFA indicated that the factor ‘Self-perceived Pressure from Informal Care’ explained varying levels of variance in the items of the SPPIC (ranging from .52 to .87). Family caregivers who provided care at least once a week and who shared a home with a person with dementia perceived a greater pressure from informal care (p = 0.007, p = 0.001).

Conclusions

The Turkish translation of the SPPIC can be used in future research and practice to obtain insight into self-perceived pressure from informal care of family caregivers with Turkish immigrant backgrounds. At the same time it is recommended to conduct more research on how the measurement of self-perceived pressure from informal care in this group can be further improved.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12877-021-02161-6.

Design, methods, and baseline characteristics of a pilot, randomized, controlled trial of the effects of an electronic monitoring device on medication adherence in children with asthma

Non-adherence to medication is common

Current methods of assessing adherence are inaccurate. Electronic monitoring devices (EMDs) may more accurately assess adherence, but are not currently used in practice. The design, methods, and participant baseline characteristics are described for a pilot trial of the effects of an EMD on asthma medication adherence in a pediatric population.

This was a pilot, randomized, controlled trial of children with persistent asthma managed with daily inhaled corticosteroids (ICS). Seventy-five children were randomized 2:1 to receive either two EMDs (one for ICS and one for rescue) linked via Bluetooth to a mobile application (app) or standard of care (controls). EMDs recorded dates and times of inhaler actuations and the app sent daily medication reminders to participants. Controls were provided standard care. Medication adherence was measured using pharmacy refill records and self-report, whereas EMD data were used to measure adherence in the intervention group. Secondary outcomes included asthma control, pulmonary function, and quality of life.

Results

One hundred sixty children were screened for eligibility, with 123 individuals excluded. Seventy-five children were enrolled, with 25 allocated to the control group and 50 to the intervention. The mean age of participants is 12 years old (±2.9), with equal proportions of male and female children; 45% are Latinx and 19% African-American; 77% report Medicaid or CHIP coverage. Half of participants have moderate persistent asthma and 48% had marginally controlled asthma at time of enrollment. There were no significant inter-group differences in baseline sociodemographic characteristics.

Conclusion

This pilot successfully reached target populations and met recruitment and enrollment goals. It is addressing an important knowledge gap by evaluating the effects of an EMD with a mobile app on adherence rates, findings which could prove useful in determining whether routine use of EMDs in clinical practice help children achieve better asthma control and outcomes.

Clinical Trials.gov

NCT03734861.

Effect of a tailored multidimensional intervention on the care burden among family caregivers of stroke survivors: study protocol for a randomised controlled trial

INTRODUCTION

Caring for stroke survivors creates high levels of care burden among family caregivers. Previous initiatives at alleviating the care burden have been unsuccessful. The proposed study aims to evaluate the effect of a tailored multidimensional intervention on the care burden among family caregivers of stroke survivors. Based on the perceived needs of family caregivers, this intervention takes into account scientific recommendations to combine three different approaches: skill-building, psychoeducation and peer support.

METHODS AND ANALYSIS

Using a prospective, randomised, open-label, parallel-group design, 110 family caregivers will be enrolled from Dakahlia Governorate, Egypt between December 2019 and May 2020, and randomly assigned to either the intervention group or the control group. The tailored multidimensional intervention will be administered for 6 months, including three home visits, six home-based telephone calls and one peer support session. The primary outcome is the care burden as measured using the Zarit Burden Interview. Secondary outcomes include changes in the family caregivers' perceived needs (Family Needs Questionnaire-Revised), coping strategies (Brief-Coping Orientation to Problems Experienced) and quality of life (WHO Quality of Life-BREF). Outcomes evaluation will be conducted at baseline (T0), month 3 (T1) and month 6 (T2). Independent t-test will be performed to compare the mean values of study variables between the two groups at both T1 and T2. After adjusting for confounding variables, analysis of covariance will be used to assess the effect of the intervention. In addition, repeated measures analysis of variance will be conducted to assess changes in effect over time.

ETHICS AND DISSEMINATION

This study was approved by the Research Ethics Committee of the Faculty of Nursing, Mansoura University, Mansoura, Egypt (P.0195). The results will be published in a scientific peer-reviewed journal, and findings will be disseminated at the local and international levels.

TRIAL REGISTRATION NUMBER

NCT04211662.

Correlates related to follow-up in a community engagement program in North Central Florida

AIMS

This analysis identifies the correlates of 60- and 120-day telephone-based study follow-ups among community-dwelling adults in North Central Florida.

METHODS

Six thousand three hundred and forty participants were recruited by Community Health Workers from the University of Florida's community engagement program with a face-to-face baseline and two phone follow-ups assessing indicators of health.

RESULTS

Physical disability versus none (adjusted odds ratio [aOR], 1.5; 95% confidence interval [CI], 1.2─1.9), high trust in research versus none (aOR, 1.5; 95% CI, 1.1─2.1), history of research participation versus none (aOR, 1.6; 95% CI, 1.3─2.0), having health insurance versus none (aOR, 1.4; 95% CI, 1.1─1.7), interest in research participation versus none (aOR, 1.8; 95% CI, 1.3─2.7), and no drug use versus drug use (aOR, 0.5; 95% CI, 0.3─0.9) significantly predicted completion of follow-up.

CONCLUSIONS

Health and social factors such as disability, insurance, history of and interest in research, trust and no drug use significantly predicted completing two follow-ups. These findings can facilitate efforts to minimize attrition in the research enterprise.

Factors Associated With Home Visits in a 5-Year Study of Acute Respiratory Distress Syndrome Survivors

BACKGROUND

Participant retention is vital for longitudinal studies. Home visits may increase retention, but little is known about the subset of patients they benefit.

OBJECTIVE

To evaluate patient-related variables associated with home visits.

METHODS

In a 5-year, longitudinal, multisite, prospective study of 195 survivors of acute respiratory distress syndrome, in-person assessments were conducted at a research clinic. Home visits were offered to participants who could not attend the clinic. Associations between having a home visit, prior follow-up visit status, and baseline and in-hospital patient variables were evaluated with multivariable, random-intercept logistic regression models. The association between home visits and patients' posthospital clinical status was evaluated with a subsequent regression model adjusted for these variables.

RESULTS

Participants had a median age of 49 years and were 56% male and 58% White. The following had independent associations with home visits (adjusted odds ratio [95% CI]): age (per year: 1.03 [1.00-1.05]) and immediately preceding visit incomplete (2.46 [1.44-4.19]) or at home (8.24 [4.57-14.86]). After adjustment for prior-visit status and baseline and hospitalization variables, these posthospital patient outcome variables were associated with a subsequent home visit: instrumental activities of daily living (≥ 2 vs < 2 dependencies: 2.32 [1.29-4.17]), EQ-5D utility score (per 0.1-point decrease: 1.15 [1.02-1.30]), and 6-minute walk test (per 10-percentage-point decrease in percent-predicted distance: 1.50 [1.26-1.79]).

CONCLUSIONS

Home visits were important for retaining older and more physically impaired study participants, helping reduce selection bias caused by excluding them.

Thirty years later: Locating and interviewing participants of the Chicago Longitudinal Study

Retaining study participants over time is essential for longitudinal studies to prevent selection bias and to achieve their long-term goals. The present paper examines the extent to which participants can be retained in a 30-year longitudinal study when a multi-pronged approach is employed. The paper specifically describes the approach that was used to locate and interview participants of the Chicago Longitudinal Study (CLS), three decades after the study began. The CLS is a prospective cohort investigation that examines the effects of the Child-Parent Center (CPC) program, a school-based intervention for low-income children from preschool through 3rd grade. The original CLS sample included a complete cohort of 1,539 children who were born in low-income areas in 1979-1980 and attended kindergarten in 1985-1986 at Chicago Public Schools. The CLS conducted a follow-up survey when participants were approximately age 35. After relatively slow initial progress, CLS researchers developed a comprehensive strategy to locate and interview participants, including: (a) adoption of detailed, manualized tracking protocol, (b) utilization of multiple search platforms, ranging from public search engines to social media, (c) assistance from state correctional facilities, and (d) neighborhood canvassing and in-person interviews. This tracking and interview process facilitated 735 completed interviews within 27 months, compared to 370 completed interviews in the 32 months prior to the launch of the comprehensive tracking protocol. Altogether, 1,105 interviews were conducted, representing an effective completion rate of 76.5%. Recommendations for strengthening response rates in other longitudinal studies are discussed.

Key recruitment and retention strategies for a pilot web-based intervention to decrease obesity risk among minority youth

Background

Interactive Nutrition Comics for Urban Minority Youth (Intervention INC) is an innovative, web-based interactive comic tool for dietary self-management, which aims to decrease obesity risk among urban minority preadolescents. The feasibility and acceptability of Intervention INC was assessed by implementing a two-group randomized pilot study. To date, intervention studies have typically faced various barriers in recruiting and retaining study participants. The purpose of this paper is to describe recruitment and retention activities from this study and in particular, discuss challenges faced, strategies implemented, and lessons learned.

Methods

Black/AA and Latino children (ages 9–12 years) and their parent/guardian were recruited from East Harlem/Harlem, New York. Recruitment strategies included flyering in the community, having a convenient study location, providing participation incentives, and partnering with community/school-based organizations. Potential participants were screened for eligibility; enrollees completed online surveys and interviews at baseline (T1), intervention midpoint (T2), intervention end (T3), and 3-months post-intervention (T4). Retention strategies included flexible scheduling, reminder calls/texts, incremental compensation, and consistent study staff.

Results

Eighty-nine enrolled dyads completed a T1 visit (August to November 2017) and were randomized to the experimental (E, n = 45) or comparison (C, n = 44) group. Enrolled dyads learned about the study through community events (39%), community flyering (34%), friend/referral (15%), or a community clinic partner (12%). T1 child demographics were mean age = 10.4 ± 1.0 years, 61% female, 62% Black and 42% Latino, and 51% overweight/obese; parent demographics were mean age = 30.8 ± 8.9 years, 94% female, and 55% Black and 45% Latino. Survey completion rates by dyad were high throughout the study: T2, 87%; T3, 89%; and T4, 84%. Average data collection per session was 65 min. Parents at T4 (n = 76) felt they received enough study information (97%) and that their questions were answered properly (80%). Eighty-one percent of children at T4 (n = 75) were very satisfied/extremely satisfied with how study staff communicated and interacted with them.

Conclusion

Effective recruitment strategies consisted of community events and flyering, while a variety of retention strategies were also used to successfully engage urban Black/AA and Latino families in this study. Though our findings are limited to only Latino and Black families in low-income neighborhoods, we have identified successful strategies for this specific high-risk population and potentially similar others.

Trial registration

ClinicalTrials.gov, NCT03165474, registered 15 May 2017

Participant experiences in a paraprofessional-led weight management program for children and families

Background:

Pediatric obesity is a serious and widespread medical condition that is increasing in the United States. Unfortunately, family-based programming to address the disorder fails to successfully reach and engage many children, particularly in low-income communities. To provide more affordable, accessible, and scalable programming options, researchers partnered with pediatricians and the Cooperative Extension Service (Extension) in a Midwestern state to develop a collaborative intervention. Partnering pediatricians referred children and families to a weight management program delivered by a trained Extension paraprofessional. The current study describes family experiences with the program.

Methods:

Researchers conducted a focus group or family interview with 13 program completers to elicit program perceptions, experiences with paraprofessionals, and motivators to continue. The focus group and family interviews were audio recorded and transcribed verbatim for textual analysis. Using thematic analysis, researchers examined patterns across transcripts and formulated emerging themes.

Results:

Key themes that emerged included (1) nutrition guidance, (2) interaction, (3) child influence, and (4) family engagement. Families viewed paraprofessionals as compassionate and competent educators who were instrumental in helping families modify health-related behaviors.

Conclusions:

Results of the current study are important to efforts focused on addressing childhood obesity, particularly in underserved communities where access to healthcare services is limited.

Goal-directed versus outcome-based financial incentives for weight loss among low-income patients with obesity: rationale and design of the Financial Incentives foR Weight Reduction (FIReWoRk) randomised controlled trial

INTRODUCTION

Obesity is a major public health challenge and exacerbates economic disparities through employment discrimination and increased personal health expenditures. Financial incentives for weight management may intensify individuals' utilisation of evidence-based behavioural strategies while addressing obesity-related economic disparities in low-income populations. Trials have focused on testing incentives contingent on achieving weight loss outcomes. However, based on social cognitive and self-determination theories, providing incentives for achieving intermediate behavioural goals may be more sustainable than incentivising outcomes if they enhance an individual's skills and self-efficacy for maintaining long-term weight loss. The objective of this paper is to describe the rationale and design of the Financial Incentives foR Weight Reduction study, a randomised controlled trial to test the comparative effectiveness and cost-effectiveness of two financial incentive strategies for weight loss (goal directed vs outcome based) among low-income adults with obesity, as well as compared with the provision of health behaviour change resources alone.

METHODS AND ANALYSIS

We are recruiting 795 adults, aged 18-70 years with a body mass index ≥30 kg/m2, from three primary care clinics serving residents of socioeconomically disadvantaged neighbourhoods in New York City and Los Angeles. All participants receive a 1-year commercial weight loss programme membership, self-monitoring tools (bathroom scale, food journal and Fitbit Alta HR), health education and monthly check-in visits. In addition to these resources, those in the two intervention groups can earn up to $750 over 6 months for: (1) participating in an intensive weight management programme, self-monitoring weight and diet and meeting physical activity guidelines (goal-directed arm); or (2) a ≥1.5% to ≥5% reduction in baseline weight (outcome-based arm). To maximise incentive efficacy, we incorporate concepts from behavioural economics, including immediacy of payments and framing feedback to elicit regret aversion. We will use generalised mixed effect models for repeated measures to examine intervention effects on weight at 6, 9 and 12 months.

ETHICS AND DISSEMINATION

Human research protection committees at New York University School of Medicine, University of California Los Angeles (UCLA) David Geffen School of Medicine and Olive-View-UCLA Medical Center granted ethics approval. We will disseminate the results of this research via peer-reviewed publications, conference presentations and meetings with stakeholders.

TRIAL REGISTRATION NUMBER

NCT03157713.

Strategies for recruitment and retention of underrepresented populations with chronic obstructive pulmonary disease for a clinical trial

BACKGROUND

Recruitment and retention are two significant barriers in research, particularly for historically underrepresented groups, including racial and ethnic minorities, patients who are low-income, or people with substance use or mental health issues. Chronic obstructive pulmonary disease (COPD) is the third leading cause of death and disproportionately affects many underrepresented groups. The lack of representation of these groups in research limits the generalizability and applicability of clinical research and results. In this paper we describe our experience and rates of recruitment and retention of underrepresented groups for the Aides in Respiration (AIR) COPD Health Coaching Study.

METHODS

A priori design strategies included minimizing exclusion criteria, including patients in the study process, establishing partnerships with the community clinics, and ensuring that the health coaching intervention was flexible enough to accommodate patient needs.

RESULTS

Challenges to recruitment included lack of spirometric data in patient records, space constraints at the clinic sites, barriers to patient access to clinic sites, lack of current patient contact information and poor patient health. Of 282 patients identified as eligible, 192 (68%) were enrolled in the study and 158 (82%) completed the study. Race, gender, educational attainment, severity of disease, health literacy, and clinic site were not associated with recruitment or retention. However, older patients were less likely to enroll in the study and patients who used home oxygen or had more than one hospitalization during the study period were less likely to complete the study. Three key strategies to maximize recruitment and retention were identified during the study: incorporating the patient perspective, partnering with the community clinics, and building patient rapport.

CONCLUSIONS

While the AIR study included design features to maximize the recruitment and retention of patients from underrepresented groups, additional challenges were encountered and responded to during the study. We also identified three key strategies recommended for future studies of COPD and similar conditions. Incorporating the approaches described into future studies may increase participation rates from underrepresented groups, providing results that can be more accurately applied to patients who carry a disparate burden of disease.

TRIAL REGISTRATION

This trial was registered at ClinicalTrial.gov at identifier NCT02234284 on August 12, 2014. Descriptor number: 2.9 Racial, ethnic, or social disparities in lung disease and treatment.

Efficacy of digital CBT for insomnia to reduce depression across demographic groups: a randomized trial

BACKGROUND

Insomnia and depression are highly comorbid and mutually exacerbate clinical trajectories and outcomes. Cognitive behavioral therapy for insomnia (CBT-I) effectively reduces both insomnia and depression severity, and can be delivered digitally. This could substantially increase the accessibility to CBT-I, which could reduce the health disparities related to insomnia; however, the efficacy of digital CBT-I (dCBT-I) across a range of demographic groups has not yet been adequately examined. This randomized placebo-controlled trial examined the efficacy of dCBT-I in reducing both insomnia and depression across a wide range of demographic groups.

METHODS

Of 1358 individuals with insomnia randomized, a final sample of 358 were retained in the dCBT-I condition and 300 in the online sleep education condition. Severity of insomnia and depression was examined as a dependent variable. Race, socioeconomic status (SES; household income and education), gender, and age were also tested as independent moderators of treatment effects.

RESULTS

The dCBT-I condition yielded greater reductions in both insomnia and depression severity than sleep education, with significantly higher rates of remission following treatment. Demographic variables (i.e. income, race, sex, age, education) were not significant moderators of the treatment effects, suggesting that dCBT-I is comparably efficacious across a wide range of demographic groups. Furthermore, while differences in attrition were found based on SES, attrition did not differ between white and black participants.

CONCLUSIONS

Results provide evidence that the wide dissemination of dCBT-I may effectively target both insomnia and comorbid depression across a wide spectrum of the population.

Evasão em Intervenções Psicológicas com Pais de Crianças e Adolescentes: Relato de Experiência

Resumo A evasão de participantes em pesquisas que avaliam efeitos de intervenções com pais de crianças e adolescentes tem sido pouco investigada pelos pesquisadores brasileiros, que enfrentam dificuldades para concluir estudos-piloto, frequentemente realizados com recursos escassos e amostras pequenas. Este estudo propõe uma análise crítica sobre experiências com a evasão de participantes em quatro pesquisas que avaliaram programas de intervenção, conduzidas pelos autores do presente artigo, à luz da literatura recente. A análise das experiências revelou percentuais de 40% a 80% de abandono após o recrutamento ou início da intervenção. Entre os motivos elencados para justificar o abandono estão: o desinteresse, a discordância entre os cônjuges sobre a adesão, a distância entre residência e local da intervenção e a incompatibilidade de horários. Conclui-se que a maior aproximação entre os pesquisadores e a comunidade pode resultar em aumento de confiança e adesão aos estudos, o que pode ampliar o potencial de inserção social e divulgação científica das pesquisas realizadas com essa população.

The ethics of uninsured participants accessing healthcare in biomedical research: A literature review

Background/aims Sparse literature exists on the challenges and ethical considerations of including people with limited access to healthcare, such as the uninsured and low-income, in clinical research in high-income countries. However, many ethical issues should be considered with respect to working with uninsured and low-income participants in clinical research, including enrollment and retention, ancillary care, and post-trial responsibilities. Attention to the uninsured and low-income is particularly salient in the United States due to the high rates of uninsurance and underinsurance. Thus, we conducted a scoping review on the ethical considerations of biomedical clinical research with uninsured and low-income participants in high-income countries in order to describe what is known and to pinpoint areas of needed research on this issue. Methods MEDLINE/PubMed, Embase, and Scopus databases were searched using terms that described main concepts of interest (e.g., uninsured, underinsured, access to healthcare, poverty, ethics, compensation, clinical research). Articles were included if they met four inclusion criteria: (1) English, (2) high-income countries context, (3) about research participants who are uninsured or low-income, which limits their access to healthcare, and in biomedical clinical research that either had a prospect of direct medical benefit or was offered to them on the basis of their ill health, and (4) recognizes and/or addresses challenges or ethical considerations of uninsured or low-income participants in biomedical clinical research. Results The searches generated a total of 974 results. Ultimately, 23 papers were included in the scoping review. Of 23 articles, the majority (n = 19) discussed enrollment and retention of uninsured or low-income participants. Several barriers to enrolling uninsured and low-income groups were identified, including limited access to primary or preventive care; lack of access to institutions conducting trials or physicians with enough time or knowledge about trials; overall lack of trust in the government, research, or medical system; and logistical issues. Considerably fewer articles discussed treatment of these participants during the course of research (n = 5) or post-trial responsibilities owed to them (n = 4). Thus, we propose a research agenda that builds upon the existing literature by addressing three broad questions: (1) What is the current status of uninsured research participants in biomedical clinical research in high-income countries? (2) How should uninsured research participants be treated during and after clinical research? (3) How, if at all, should additional protections for uninsured research participants affect their enrollment? Conclusions This review reveals significant gaps in both data and thoughtful analysis on how to ethically involve uninsured research participants. To address these gaps, we propose a research agenda to gather needed data and theoretical analysis that addresses three broad research questions.

Age, HIV status, and research context determined attrition in a longitudinal cohort in Nigeria

OBJECTIVES

We explored determinants of attrition in a longitudinal cohort study in Nigeria.

STUDY DESIGN AND SETTING

We enrolled 1,020 women into a prospective study. Of these, 973 were eligible to return for follow-up. We investigated the determinants of attrition among eligible women using a sequential mixed methods design. We used logistic regression models to compare the baseline characteristics of responders and nonresponders. At the end of the parent study, we conducted four focus group discussions and eight key informant interviews with nonresponders.

RESULTS

Of the 973 women included in the quantitative analysis, 26% were nonresponders. From quantitative analysis, older women were less likely to drop out than younger women (reference: women ≤30 years; OR 0.46; 95% confidence interval [CI] 0.30-0.70, P < 0.001 women 31-44 years; and OR 0.31; 95% CI 0.17-0.56, P < 0.001 women ≥45 years). HIV-positive women were also less likely to drop out of the study (OR 0.45; 95% CI 0.33-0.63, P < 0.001). From qualitative analysis, contextual factors that influenced attrition were high cost of participation, therapeutic misconceptions, inaccurate expectations, spousal disapproval, unpleasant side effects, challenges in maintaining contact with participants, and participant difficulties in locating the study clinic.

CONCLUSION

Several participant-, research-, and environment-related factors influence attrition. Retention strategies that address these barriers are important to minimize attrition.

Recruitment and retention strategies for an urban adolescent study: Lessons learned from a multi-center study of community-based asthma self-management intervention for adolescents

Intervention studies with urban adolescents and families affected by asthma are critical to improving the disproportionate morbidity in this population. Community-based recruitment and retention strategies in a multi-site longitudinal project evaluating an asthma self-management intervention for adolescents are presented. Successful recruitment strategies depended on the geographic and cultural characteristics of each study site. Partnering with providers and groups known to the target population and in-person contact with target population were found effective. Flexibility accommodating modified and new approaches, securing multiple contacts and repeating mailings as well as capitalizing on the benefits of subject payment was critical to achieving long-term subject engagement of 85% in the study. Ongoing monitoring and adjustment of recruitment and retention strategies is recommended.