Key facts

Around 83,000 Kiwis are living with dementia mate wareware in 2025. By 2050, this number could nearly double to almost 170,000

Around 6,700 people under the age of 65 live with dementia mate wareware in 2025, making up 8% of all cases.

Every hour, 3 people develop dementia mate wareware in 2025, rising to 4 people per hour by 2050.

Up to 50% of people with dementia mate wareware are not diagnosed, with the highest rates among Asian peoples.

Māori, Pacific, and Asian peoples are experiencing faster-growing rates of dementia mate wareware than European New Zealanders. Māori and Pacific peoples are often diagnosed younger and with more health conditions.

One in four New Zealanders will die with dementia mate wareware.

Up to 50% of dementia mate wareware cases could be prevented by addressing 14 modifiable risk factors early.

Dementia mate wareware is more common in deprived areas with Māori and Pacific peoples facing a higher burden of preventable risks.

By 2050, dementia mate wareware will cost Aotearoa New Zealand around $10.65 billion per year (in 2050 dollars) in inflation-adjusted costs.

Dementia mate wareware around the world

Every three seconds, someone in the world develops dementia mate wareware.

In 2020, over 55 million people worldwide were living with dementia mate wareware, with more than 10 million new cases of dementia mate wareware each year.

Global costs of dementia mate wareware now exceed US$ 1.3 trillion a year and are expected to reach US$ 2.8 trillion by 2030.

Only 20-50% of dementia mate wareware cases are recognised and documented in primary care. Around three quarters of people with dementia mate wareware have not been diagnosed, limiting access to treatment, care and support.

Source: Alzheimer’s Disease International

Every three seconds, someone in the world develops dementia mate wareware.

There are over 50 million people worldwide living with dementia mate wareware in 2020.

This number will almost double every 20 years, reaching 82 million in 2030 and 152 million in 2050.

Much of the increase will be in developing countries. Already 60% of people with dementia mate wareware live in low and middle income countries, but by 2050 this will rise to 71%.

The fastest growth in the elderly population is taking place in China, India, and their south Asian and western Pacific neighbours.

Source: Alzheimer’s Disease International