‘This resulted in an estimated total of 3.8 million individuals over the age of 71 with dementia and just over 2.5 million with AD in the USA‘.
(Ferri CP, Prince M, Brayne C, Brodaty H, Fratiglioni L, Ganguli M, Hall K, Hasegawa K, Hendrie H, Huang Y, Jorm A, Mathers C, Menezes PR, Rimmer E, Scazufca M: Global prevalence of dementia: a Delphi consensus study. Lancet 2005;366:2112–2117.)
There are 37.2 million people aged 65 and older.
(U.S. Census Bureau
Housing and Household Economics Division Labor Force Statistics Branch
Presented at the American Sociological Association Annual Conference in Boston, MA on August 2, 2008.)