Global Epidemiology of Dementia: Alzheimer’s and Vascular Types

Table 2

Summary of some studies that evaluate the prevalence of dementia in respective countries or regions.

Country/; region	Study	Year	AD	VaD	Prevalence of; dementia	Reference
Europe	Collaborative study	1990	4.4% > 65 years	1.6% > 65 years	6.4% > 65 years	[14]
Ommoord	Rotterdam Study	1995	72% > 55 years	16% > 55 years	6.3% > 55 years	[15]
Italy	ILSA Study	1992-1993	6.55% > 65 years	3.30% > 65 years	12.47% > 65 years	[16]
USA	ADAMS	2007	—	—	14% > 71 years	[7]
Latin America	Delphi Consensus Study	2005	—	—	7.3% > 75 years	[4]
Korea	KLoSHA	2006	4.8% > 65 years	1.0% > 65 years	6.3% > 65 years	[17]
Singapore	Singaporean study	1995	—	—	Chinese: 2.5% and; Malays: 4.0% among the elderly	[18]
China	People’s Republic of China study	1980–2010	1.9% > 60 years	0.9% > 60 years	3.0% > 60 years	[19–21]
Africa-USA	Indianapolis-Ibadan Dementia Project	2001	Native Yoruba: 1.4%,; African American: 6.3%	—	Native Yoruba: 2.3%,; African American: 8.3%	[22]
Africa	Systematic analysis	2012	57.1% > 50 years	26.9% > 50 years	2.4% > 50 years	[23]
Middle East	Wadi Ara study	2002	20.5% among the elderly	22.0% among the elderly	—	[24]