The existence of social inequalities in health (SII) remain striking in France, and people living in precarious conditions (PLPC) are particularly affected by SII, as they are subject to an accumulation of social disadvantages. One of these disadvantages is the unequal engagement in research, even though mobilizing and involving PLPC in interventional and non-interventional health research projects is recognized as a necessary step towards reducing SSI. In fact, there is little involvement of PLPC in medical and health research, and this is a major issue for public health, social justice and health democracy. The participation of the public, and in particular PLPC, in health research is beneficial for research, public policy and the participants themselves. Such participation not only helps to reduce social inequalities in health, but can also help to develop a reflective posture among participants, increasing their health literacy and empowerment. Conversely, the non-participation of PLPC results in research that responds to the needs and problems of socially more advantaged populations, thereby exacerbating SII. This unequal participation in research is the result of an intersection of barriers, themselves linked to an intersection of social disadvantages and relations of domination. Increasing the engagement of PLPC in research thus requires adopting an approach that takes into account the multiple inequalities faced by PVSP and how these inequalities shape their experiences and identity, as well as adapting current research methodologies to make them more inclusive. Community-based research represents a key tool for health democracy, thanks to a concrete approach involving the public concerned by a specific in the entire research process, and in particular by resorting to a process of empowerment for participants. The project involves developing a programm of participation in research, based on a community-based research methodologocial approach. From a scientific point of view, the aim is to understand the elements of lived experience, and in particular the experience of multiple inequalities, which can be mobilized as a lever leading PLPC to participate in research. From an operational point of view, this project aims to develop a program, in co-construction, between the community partners (Voisin Malin; Seintinelles) and the scientific partners (PÔPS; CERPOP) in order to co-develop with the Voisins Malins, identified as being PLPC, the tools and modalities of participation in research for PLPC. By working on the levers of participation in research and on a process of empowerment of PLPC, the results of this project contribute to greater social justice and health democracy.
