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Global Observatory for Ageing and Dementia Care

The Global Observatory for Ageing and Dementia Care, is funded by Alzheimer's Disease International, and was established in 2013.



  • Two-thirds of the world’s 36 million people with dementia live in low and middle income countries.
  • Research in high income countries indicates considerable underdiagnosis and undertreatment; one half to two-thirds have not received a diagnosis, and people seek and receive help late in the disease course.
  • In low and middle income countries we estimate that 90% are untreated.
  • Overall up to 29 million of the world’s 36 million people with dementia, most of them living in low and middle income countries, do not receive evidence based treatment and care                                  

The Observatory has a tripartite mission:

1) To build upon ADI’s 10/66 Dementia Research Group program of population-based and intervention research in low and middle income countries, maximising the impact that research findings from our data can have upon policy and practice.
2) To developing, evaluate, and promote primary care and community interventions for people with dementia.
3) To synthesise global evidence for policymakers and public, in particular, continuing and developing our role in the preparation of high impact evidence-based reports for Alzheimer’s Disease International, the World Health Organization and other relevant intergovernmental organisations, to create the political will and donor engagement for sustainable investment, through evidence-based advocacy. 

The Observatory team is led by Professor Martin Prince and Dr Maëlenn Guerchet. 

World Alzheimer Report 2015

WAR report 2015 (2)

       WAR 2009     WAR 2010     WAR 2011  

       WAR 2013      WAR 2014      policy-brief-2013-2050 cover            



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