Dementia Types Prevalence Chart¶
This interactive chart shows the relative prevalence of the major types of dementia among the approximately 55 million people living with dementia worldwide. Toggle between a pie chart and a bar chart, click a slice or bar to see details about each type, and then test yourself with the short quiz.
Learning Objective¶
Understand the relative prevalence of different dementia types (Bloom Level 2 - Understand)
- Bloom Level: Understand (L2)
- Bloom Verb: Compare, interpret
- Library: Chart.js
Run the MicroSim¶
Prevalence Summary¶
| Dementia Type | Percent of Cases | Estimated Cases Worldwide |
|---|---|---|
| Alzheimer's disease | 60-70% | ~35.8 million |
| Vascular dementia | 15-20% | ~9.4 million |
| Mixed dementia | 10-15% | ~6.6 million |
| Lewy body dementia | 5-10% | ~3.9 million |
| Frontotemporal dementia | 5-10% | ~3.3 million |
| Other rare types | 1-5% | ~1.7 million |
Percentages are approximate and vary by study and population. Total cases reflect global estimates of about 55 million people living with dementia.
Key Takeaways¶
- Alzheimer's disease is by far the most common type of dementia.
- Mixed dementia often goes undiagnosed until autopsy.
- Frontotemporal dementia (FTD) is the most common dementia in people under 60.