By 2030, it is projected that an additional 4 million people will have had a stroke–a 25% increase in prevalence from 2010.
Heidenreich P, Trogdon J, Khaviou O, Butler J, et al. Forecasting the Future of Cardiovascular Disease in the United States: A policy statement from the American Heart Association. Circ. 2011; 123: 933-44. http://circ.ahajournals.org/content/early/2011/01/24/CIR.0b013e31820a55f5.abstract