Large surveys of Americans generally show that about one-fifth of the adult population live with disabilities or serious chronic conditions. Different definitions of disability and chronic illness are sometimes employed in these surveys, but they are relatively consistent in finding that a notable portion of Americans live with these conditions.
In a Pew Internet & American Life nationwide phone survey in the fall of 2006, 17% of American adults answered “yes” to the following question: “Does any disability, handicap, or chronic disease keep you from participating fully in work, school, housework, or other activities, or not?” That translates to about 34 million adults living with chronic conditions. This population is characterized by a comparatively greater portion of people age 50 and older and those who do not use a computer on a regular basis.
A report by the Centers for Disease Control and Prevention and the Merck Company Foundation estimates that 80% of older Americans live with one or more chronic conditions. As the population ages, the number of Americans with chronic conditions is certain to grow, consuming more health care and health information along the way.