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Demography

1. Summary

The number of people with dementia is steadily increasing. Alzheimer's Society believes that careful planning for the future is needed now to ensure that the right care and support is available.

The report Dementia UK: Second edition, published in September 2014, provides the most up-to-date evaluation of the numbers of people with dementia in the UK, projections on numbers of people in the future and the prevalence of dementia.

2. Current number of people with dementia in the UK 

In 2013, there were 815,827 people with dementia in the UK.  773,502 of these people with dementia were aged 65 years or over. This represents 1 in every 79 (1.3%) of the entire UK population and 1 in every 14 of the population aged 65 years and over. In 2015, there will be 856,700 people with dementia in the UK in 2015 at the current rate of prevalence.

3. Dementia by country

In 2015, 720,251 of the 856,700 people in the UK with dementia will live in England, 45,321 in Wales, 70,162 in Scotland and 20,966 in Northern Ireland. 

4. Projected growth

The  number of people with dementia in the UK is forecast to increase to 1,142,677 by 2025 and 2,092,945 by 2051, an increase of 40% over the next 12 years and of 156% over the next 38 years.

Many people talk about a 'dementia time bomb' that the state cannot cope with. This is misleading. A steady, rather than dramatic growth is expected over the next 25 years.

5. Types of dementia 

Alzheimer's disease is the most common form of dementia. The proportions of those with different forms of dementia can be broken down as follows:

6. Younger people and dementia

In 2013, there were 42,325 people with early-onset dementia (onset before the age of 65 years) in the UK. This higher figure corrects an underestimate in the 2007 Dementia UK report.

7. People from black, Asian and minority ethnic groups and dementia

It is estimated that in 2011 there were 25,000 people with dementia from black, asian and minority ethnic (BAME) groups in England and Wales (Alzheimer's Society, 2012). This number is expected to double to 50,000 by 2026 and rise to over 172,000 by 2051. This is a nearly a seven-fold increase in 40 years, compared to just over a two-fold increase in the numbers of people with dementia across the whole UK population in the same time period.

Due to lack of new evidence, the prevalence figures for BAME groups have not been updated in 2014.

8. People with a learning disability and dementia

People with learning disabilities may experience a higher risk of dementia because of premature ageing. Also, people with Down's syndrome have an increased genetic risk of developing dementia. Additional specialist support and services need to be provided to meet their increasing needs.

9. Dementia worldwide

There are currently nearly 36 million people with dementia in the world, but as many as 28 million of those living with dementia worldwide do not have a diagnosis.

The numbers of people living with dementia worldwide is expected to double every 20 years. By 2050 it is projected there will be 115 million people with dementia worldwide, 71 per cent of whom will live in developing countries. There are over 6 million people with dementia in Europe.

The total estimated cost of dementia worldwide is US$604 billion (£380 billion).

A 2012 report by the World Health Organisation recognised that dementia is a global health challenge and called on countries to recognise this challenge and include dementia in public health planning.

10. References and further information 

Alzheimer's Society Dementia UK: Second edition report

Alzheimer's Society Dementia UK report

All Party Parliamentary Group on dementia Dementia does not discriminate report

World Health Organisation Dementia: a public health priority report

Last updated: September 2014 by Laurence Thraves

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