The Constant in Racial and Ethnic Health Disparities: An Analytical Essay

The National Academies’ conclusion that racial and ethnic health disparities have hardly changed over two decades provides robust evidence for the validity of PHL’s THIR constant within this epoch. This constant, representing deeply entrenched structural inequities, explains the persistence of disparities despite efforts to mitigate them. While challenges like variability and modest progress exist, they do not undermine the core idea that a baseline inequity resists change absent radical transformation. Addressing this constant requires moving beyond incrementalism to systemic, liberation-focused strategies that tackle the structural foundations of health inequity, offering a path toward meaningful equity in health care.