Only 2.7% of 65-year-olds who have experienced a stroke are free of comorbidities and physical limitations–66.4% have 3 or more.
Joyce, Geoffrey F., Emmett B. Keeler, Baoping Shang, and Dana P. Goldman. The Lifetime Burden of Chronic Disease among the Elderly: Health and costs of the future elderly. Health Affairs Web Exclusive Collection. 2005; 24(2). http://content.healthaffairs.org/cgi/content/abstract/hlthaff.w5.r18v1