What is the prevalence of frontotemporal dementia (FTD) in the US?

Updated: Jun 14, 2018
  • Author: Howard S Kirshner, MD; Chief Editor: Jasvinder Chawla, MD, MBA  more...
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The exact prevalence of frontotemporal lobe dementia (FTD) is unknown. Among patients presenting with dementia who are younger than 65 years, the prevalence may be similar to or greater than that of Alzheimer disease. [49, 50] Some series based on brain pathology have estimated that FTD is responsible for as many as 10% of cases of dementia. In the United States, estimates are generally lower; FTD ranks after Alzheimer disease, vascular dementia, and Lewy body dementia in frequency of dementing illnesses.

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