Across the globe, an estimated 46.8 million people are living with dementia. There are an estimate 9.9 million new cases each year worldwide, or one case every 3.2 seconds. The number of people with dementia is expected to double every 20 years.
More than half of all people living with dementia live in countries classified as low or middle income by the World Bank. The regional prevalence of dementia (49% in Asia, 25% Europe, 18% Americas, 8% Africa) is likely to see a greater proportion of cases emerging in Asia, the Americas and Africa, whilst it is expected that the proportion in Europe will fall (Source, World Alzheimer’s Report, 2015).
Dementia in the UK
It is estimated that 850,000 people are living with dementia in the UK in 2015. This represents 1 in every 79 people in the UK, and 7.1% of over 65’s. The total number of people with dementia in the UK is forecast to increase to over 1 million by 2025 and over 2 million by 2051 if age-specific prevalence remains stable. (Source, Dementia UK Report 2007 updated 2014).