A person with a physical, mental, or emotional condition lasting six months or more, who has difficulty in doing any of the activities such as dressing, bathing, or getting around inside the home (Erickson & Lee, 2008).

Erickson, W., & Lee, C. (2008). 2007 disability status report: United States. Ithaca, NY: Cornell University Rehabilitation Research and Training Center on Disability Demo­graphics and Statistics.