Inequalities and Inequities in the Health of People With Intellectual Disabilities

Children and adults with intellectual disabilities have poorer health and are more likely to die sooner than their non–intellectually disabled peers. There is growing evidence that some of these inequalities in health are avoidable, unjust, and unfair, given that they are driven by the higher rates of exposure of people with intellectual disabilities to well-established social determinants of poor health. People with intellectual disabilities are more likely than their peers to: live in poverty, not be employed (or if employed to work under precarious conditions), be exposed to discrimination and violence, face significant barriers in accessing effective health care, and be less resilient when exposed to adversities. In other words, they are examples of health inequities that arise from “the societal conditions in which people are born, grow, live, work and age, referred to as social determinants of health. These include early years’ experiences, education, economic status, employment and decent work, housing and environment, and effective systems of preventing and treating ill health” (World Health Organization). Future research needs to address three key issues. First, most of the existing evidence is based on the experiences of people with intellectual disabilities in the world’s high-income countries. In contrast, the vast majority of the world’s population live in middle- and low-income countries. The limited evidence available suggests that children with intellectual disabilities growing up in middle- and low-income countries are much more likely than their peers to be growing up in poverty and to be exposed to specific social determinants of poorer health associated with poverty such as undernutrition, poor sanitation, low levels of parental stimulation, violent parental discipline, and hazardous forms of child labor. Second, little research has focused on health inequalities and inequities among two important groups of people with intellectual disabilities: people with intellectual disabilities from minority ethnic communities and people with mild intellectual disabilities. Third, very little research has attempted to test the proposition that people with intellectual disabilities may be more or less resilient than their peers when exposed to social determinants of health. While much remains to be learned about the inequalities and inequities faced by people with intellectual disabilities, the existing knowledge is sufficient to guide and drive changes in policy and practice that could reduce the health inequities faced by people with intellectual disabilities. These include: improving the visibility of people with intellectual disabilities in local, national, and international health surveillance systems; making “reasonable accommodations” to the operation of health care systems (e.g., introducing annual health checks into primary care services, making “easy read” materials available, employing intellectual disabilities liaison nurses in acute hospitals) to ensure that people with intellectual disabilities are not exposed to systemic discrimination; and ensuring that people with intellectual disabilities (along with all other people with disabilities) are included in and benefit equally from local and national strategies to reduce population levels of exposure to well-established social determinants of poor health.