Abstract
Definitions of disability have evolved over time. Consistent with the biopsychosocial model used by the World Health Organization, we conceptualize disability as an interaction between a person's functional impairments or chronic health conditions and the physical and social environment. Having a disability is not synonymous with poor health, and maintaining and improving health is equally important for both people with and people without disabilities. In this article we review estimates of disability prevalence in the Us and present evidence of differences in prevalence by race, ethnicity, and sexual orientation; health disparities by disability status and type of disability; and health disparities for people whose disability intersects with other forms of marginalization. We suggest policy changes to advance equity, reduce disparities, and enhance the health and well-being of all Americans with disabilities.
