Conditions for the success and feasibility of health mediation to promote healthcare utilization among underserved populations: a scoping review

Conditions for the effectiveness of health mediation in promoting healthcare utilization and prevention among populations who are disconnected from the healthcare system: a literature review.

Various groups within the population are currently underserved by the health system. These include people who are underserved due to their living conditions—particularly from a material standpoint—their socioeconomic instability, their social circumstances (housing, employment, education, income), or their administrative status (legal status, access to rights, health coverage). These challenges reflect the fact that the health system, which is under significant strain, is ill-equipped to meet the specific needs of these populations.

These populations also face food insecurity, housing instability, discrimination, personal insecurity, and, for some, language barriers, lack of social support, and low health literacy. In addition, their reference point for health and physical well-being differs from that of the general population, meaning that the seriousness of disease can be underestimated.

In short, these populations suffer a triple penalty: greater exposure to disease, lower adherence to prevention measures, and less use of healthcare services. Interventions that promote the use of healthcare and prevention among these populations must aim to help services adapt while also supporting individuals’ capacity to make health-promoting decisions. They must also address the structural determinants of health, for example by developing programs for sustainable access to quality housing, employment, healthy food, and education, or by combating discrimination and exclusion.
Health mediation is one such intervention. To date, no study has evaluated the effectiveness of health mediation and the conditions for its effectiveness.

The article just published in BMJ Open [1] analyzes the conditions for effective health mediation based on a scoping review of the literature.

3 questions for Elodie Richard1 and Stéphanie Vandentorren, Scientific and International Department, Santé publique France

Health mediation refers to the interface between people who are underserved by the healthcare system and the professionals involved in addressing their issues (social workers, healthcare professionals, government agencies, elected officials, etc.). It aims to facilitate access to prevention and care for people with one or more factors of social vulnerability: geographical, family, or social isolation; practices or behaviors that put health at risk; legal or personal situations unfavorable to health; economic or administrative insecurity; lack of knowledge of the French health system; language or technology barriers; low health literacy; or being a victim of discrimination.

It coordinates individual and/or collective actions centered on information, education, and communication (i.e., “Doing with”) and navigating the health system (i.e., “Reaching out” and “Bringing in”), and also includes a mediation component that supports active mobilization, commitment, and collaboration among local stakeholders themselves, as well as between communities and these stakeholders.

Health mediators may or may not come from the population being supported, but they will have gained legitimacy through detailed knowledge of their territory, of the problems faced by the population, and of local stakeholders.

Health mediation serves to strengthen people’s capacities and support them in overcoming obstacles by empowering them to take action regarding their care pathway. It can also help identify unmet social needs and the shortcomings of a system that is not adapted to everyone, and bring these to the attention of institutions and stakeholders so that health programs can be tailored to suit the specific characteristics of these populations. Finally, it enables the development of access schemes (rights, housing, employment, education) and helps to combat inequalities in access to care and prevention, as well as discrimination and social exclusion.

Health mediation is a promising approach in which health mediators play a pivotal role, using their knowledge of the health system to ensure the health rights of people in vulnerable situations.

Health mediation practices take many forms, despite the common ground for intervention that serves as a reference framework within the National Health Authority (HAS, Haute autorité de santé). The approach must integrate various practices in order to adapt to different populations and shifts in the social context. It is an interventional system.² Based on this systemic approach, we have mapped the conditions for the success and feasibility of health mediation within a conceptual framework of interrelationships.

In the first version of the health mediation conceptual framework, the contextual conditions for success and feasibility (i.e., factors external to the mediation intervention that drive it) form the macro-system. These include political and financial commitment, the ability to influence structural and intermediate determinants of health, and the health mediator’s professional security in their work.

The specific conditions for the intervention’s success and feasibility are the principles of otherness, universalism with a holistic vision of health, interfacing functions, and intersectorality within a locally anchored network. Next comes the process of formalizing actions into plans with adequate resources and health mediation schemes that align with the ethical principles of all mediation according to Faget J.3: reaching out/bringing in, doing with, being together, and doing together.

The qualities required of the health mediator include a benevolent, attentive attitude, great mental flexibility, perseverance while remaining true to oneself, a position of trust, non-judgment, and power sharing, and the ability to provide positive feedback, as well as a strong interdependence between the health mediator, local stakeholders, and the community.

The next steps to enable the implementation of health mediation are crucial because health mediation is a cyclical process that combines the transmission of knowledge and empowerment, from the individual to the societal level. These interventions are carried out among people who feel they have limited control over their environment, with the aim of building their capacity to act; mediation must therefore address the structural determinants of health in order to be effective, particularly among those underserved by the health system. Addressing access to rights, access to and maintenance of housing, healthy food, education, and employment are all levers that facilitate the use of care and prevention.

There are still many steps to take to facilitate the implementation of mediation on a large scale. An important step is evaluation, i.e., identifying and funding promising interventions for evaluation, promoting research into evaluations that use effectiveness criteria, and accompanying and supporting research in this area. A second key step is to establish the professional framework for health mediators. Funding and job security for health mediators are crucial to ensuring the recognition and legitimacy of this profession among other professionals in the social and health sectors. A recognized training framework that promotes professionalization and incorporates the effectiveness criteria highlighted in research would lead to greater recognition of the practices and actions carried out by health mediators.

Santé publique France has initiated and supported research on health mediation in collaboration with the University of Bordeaux. A special feature in the journal La Santé en action is available to professionals; it contains numerous contributions from researchers and practitioners sharing their knowledge and experience in this field. The agency also supports and finances initiatives to develop skills and share best practices across the mediator network, such as within the framework of the national health mediation program led by the FNASAT, as well as health mediation evaluations (IKAMBERE project). At the regional level, in June 2022, the Provence-Alpes-Côte d’Azur Regional Health Agency (ARS PACA) decided to support a pilot health mediation project carried out by two associations, Sept and Corhesan, working in the most disadvantaged neighborhoods of Marseille (see box).

Health mediation for vulnerable populations in Marseille

This health mediation project for vulnerable populations in Marseille builds on the health mediation programs developed by associations during the COVID-19 pandemic (Médilac program). The health mediation interventions of the Marseille project began in October 2022. They focus primarily on cancer screening and vaccine-preventable diseases but can be expanded to address other health needs expressed by the people involved or to help them access their rights.

The project evaluation is being conducted within the framework of a partnership between Santé publique France, the ARS PACA, the National Health Insurance Fund, a joint research unit (UMR SESSTIM), and the two local associations, Sept and Corhesan. Its main objective is to assess the effectiveness of field interventions by measuring their impact on vaccination coverage rates and screening rates. The evaluation covers several areas:

  1. Process evaluation (routine collection of activity and performance indicators)

  2. Quantitative evaluation to provide evidence of the effect of interventions

  3. Qualitative evaluation

The quantitative evaluation has three components:

  • Repeated cross-sectional surveys assessing vaccine hesitancy and knowledge, attitudes, and practices regarding cancer screening

  • An ecological survey measuring reimbursements for healthcare procedures at the IRIS level (aggregated geographical units for statistical information)

  • A cohort survey assessing the performance of individual healthcare procedures

These three surveys will be conducted using a "before-and-after" design in the neighborhoods benefiting from the interventions and a "here-and-away" design that compares the neighborhoods targeted by the interventions with control neighborhoods.

Article reference:

[1] Richard E, Vandentorren S, Cambon L. Conditions for the success and feasibility of health mediation for healthcare use by underserved populations: a scoping review. BMJ Open 2022;12:e062051. doi: 10.1136/bmjopen-2022-062051.

Other references:

1 This work was carried out within the framework of a Public Health thesis supported by a CIFRE agreement between the University of Bordeaux and the FNASAT, supervised by Stéphanie Vandentorren (Santé publique France) and Linda Cambon (ISPED Prevention Chair, Inserm Center U1219, BPH, University of Bordeaux, Bordeaux University Hospital). This work was financially supported by the National Cancer Institute and Santé Publique France.
2 Cambon L, Terral P, Alla F. From intervention to interventional system: towards greater theorization in population health intervention research. BMC Public Health. Dec 2019;19(1):339.
3 Faget J. Mediations: the silent workshops of democracy. ERES. 2015;304.

For more information on health mediation (in French only):