10 things you need to know about prevalence

1. Over 1.5 million people in the UK, including both people with dementia and their carers, would benefit from dementia treatments today; that’s more than the combined populations of the cities of Bristol, Manchester and Sheffield.(11)

2. There are 850,000 people living with dementia in the UK today (1.3 per cent), including over 700,000 people in England, over 45,000 in Wales, nearly 20,000 in Northern Ireland and 70,000 people in Scotland.(12) By 2025 the number is expected to rise to over one million and by 2050 it is projected to exceed 2 million.(13)

3. In the UK it is estimated that 62 per cent of people with dementia are female and 38 percent are male.(14) Dementia is the leading cause of death among women in the UK with 13.27 per cent (38,724) of deaths per year attributed directly to the condition.(15a, 15b, 15c)

4. In the UK over 40,000 people under 65 years of age have dementia.(16)

5. There are approximately 700,000 informal carers caring for their loved ones with dementia, this is expected to rise to 1.7 million by 2050.(17)

6. The Department of Health estimate that 59 per cent of people with dementia in England have a formal diagnosis.(18)

7. There are over 46.8 million people worldwide with dementia. This is predicted to increase to over 75 million by 2030 and over 130 million by 2050.(19)

8. In Europe the numbers of people with dementia is expected to increase by 78 per cent between 2015 and 2050, from 10.5 million to 18.66 million.(20)

9. The idea that illnesses like Alzheimer’s are a disease of rich developed nations is a myth: 62 per cent of people with dementia live in low and middle income countries and 58.3 per cent live in high income countries.(21)

10. By 2050, it is estimated that the numbers of people with dementia will increase by 116% in high income countries and by 227% in the rest of the world.(22)

View our references.

These facts were last updated in March 2016 and will be refreshed every few months.