Despite the proliferation of community-clinical linkage (CCL) interventions with community health workers (CHWs), little is known about the components of these programs or how linkages are realized. In this scoping review, we synthesize evidence concerning the role of CHWs in creating and sustaining CCLs aimed at improving individual health outcomes. Our inclusion criteria included peer-reviewed articles that described a CHW intervention in the United States that used a CCL model. A total of 2,776 titles and/or abstracts were screened and 47 articles underwent full text review. Two independent reviewers rated the screened articles based on additional criteria including the CHW connection to community and evidence of linkage follow up rather than simple referral. For the 11 peer-reviewed articles included in the final review, we describe the CHW's relationship to the community, training, and role within the intervention, linkage, and outcomes. We used a standardized framework to determine commonalities in CHW roles across the interventions. CCLs with CHWs positively affect the delivery of both clinical care and community resources across a range of disease areas in a variety of contexts. To identify effective CCL models, additional information on CHW training, CCL follow-up methods, and the CHW role in CCLs is recommended.
Introduction
Compared with their non-Hispanic White counterparts, Latino/a people have limited access to health resources that might improve their emotional well-being. Interventions that prioritize the Latino/a population, address social determinants of health, and decrease health disparities are needed. The objective of this study was to describe a community–clinical linkage intervention led by community health workers (CHWs) in 3 Latino/a populations along the US–Mexico border.
Methods
Researchers at the Arizona Prevention Research Center conducted the Linking Individual Needs to Community and Clinical Services (LINKS) study during 2017–2018. Clinic-based CHWs referred participants to community-based CHWs who met with participants monthly for 6 months to assess participant needs, provide support for emotional well-being, and link them to resources. Two community-based CHWs collaborated to maximize participant care; they also administered an emotional well-being questionnaire at baseline and at 3-month and 6-month follow-up. We estimated changes in emotional well-being outcomes.
Results
Scores for social support, perceived hopefulness, and quality-of-life measures among 189 LINKS participants increased significantly during the study period, especially among men and participants with low baseline scores. For each of the 3 outcomes, the standardized change was approximately 0.28 per 3 months of intervention, a decrease of more than half an SD (0.56) during 6 months of follow-up.
Conclusion
A CHW-led community–clinical linkage intervention can result in positive emotional well-being outcomes. We encourage policy makers, funders, and public health practitioners to further investigate such interventions as a solution to reduce disparities in emotional well-being.
Background
Latinos are currently the largest and fastest growing racial/ethnic group in the United States and have the lowest rates nationally of regular sources of primary care. The changing demographics of Latino populations have significant implications for the future health of the nation, particularly with respect to chronic disease. Community-based agencies and clinics alike have a long history of engaging community health workers (CHWs) to provide a broad range of tangible and emotional support strategies for Latinos with chronic diseases. In this paper, we present the protocol for a community intervention designed to evaluate the impact of CHWs in a Community-Clinical Linkage model to address chronic disease through innovative utilization of electronic health records (EHRs) and application of mixed methodologies. Linking Individual Needs to Community and Clinical Services (LINKS) is a 3-year, prospective matched observational study designed to examine the feasibility and impact of CHW-led Community-Clinical Linkages in reducing chronic disease risk and promoting emotional well-being among Latinos living in three U.S.-Mexico border communities.
Methods
The primary aim of LINKS is to create Community-Clinical Linkages between three community health centers and their respective county health departments in southern Arizona. Our primary analysis is to examine the impact of the intervention 6 to 12-months post program entry. We will assess chronic disease risk factors documented in the EHRs of participants versus matched non-participants. By using a prospective matched observational study design with EHRs, we have access to numerous potential comparators to evaluate the intervention effects. Secondary analyses include modeling within-group changes of extended research-collected measures. This approach enhances the overall evaluation with rich data on physical and emotional well-being and health behaviors of study participants that EHR systems do not collect in routine clinical practice.
Discussion
The LINKS intervention has practical implications for the development of Community-Clinical Linkage models. The collaborative and participatory approach in LINKS illustrates an innovative evaluation framework utilizing EHRs and mixed methods research-generated data collection.
Trial registration
This study protocol was retrospectively registered, approved, and made available on Clinicaltrials.gov by
NCT03787485
as of December 20, 2018.
Electronic supplementary material
The online version of this article (10.1186/s12889-019-6725-1) contains supplementary material, which is available to authorized users.
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