[Studying socio-territorial health inequalities is essential to improving access to care for patients with chronic kidney disease].

In France, disparities in the supply of and access to care can contribute to differences in population health status. These socio-territorial health inequalities (STHI) are both unfair and avoidable and therefore require better understanding in order to limit their occurrence and consequences. Social deprivation has been shown to be associated with an increased risk of chronic kidney disease, delayed referral to nephrologists, and reduced access to waitlisting and kidney transplantation. We hypothesize that limited access to primary care constitutes a barrier to access to nephrological care. This article proposes an updated overview of the terminology and tools used to define and measure STHI, as well as a review of studies examining the impact of geographical accessibility on the nephrological care pathway.