In the year 2000, the prevalence of dementia among Americans age 65 or older was 7.6 million people – roughly 2.3% of the entire U.S. population.  This number is projected to increase to 4.5% of the U.S. population by the year 2040 (18.3 million people).
	The box on the left depicts the age-related rates of dementia:
	ages 40-65      0.1% of this group will be diagnosed with dementia
	ages 65-70     2% of this group will be diagnosed with dementia
	age 70-80     5% of this group will be diagnosed with dementia
	80+     20% of this group will be diagnosed with dementia
	The pie chart on the right depicts the prevalence of the major diseases which give rise to dementia:
	70% of dementias  are associated with Alzheimer’s disease
	17% of dementias are associated with vascular disease (e.g., stroke)
	13% of dementias are associated with other medical conditions