Table 1.
Prevalence and incidence of dementia in developed and developing regions
| Region | Consensus dementia prevalence at age ≥60 years (%) |
Estimated annual incidence of dementia (per 1,000 individuals) |
People with dementia aged ≥60 years in 2001 (millions) |
Estimated increase in proportion of people with dementia from 2001 to 2040 (%) |
|---|---|---|---|---|
| Western Europe | 5.4 | 8.8 | 4.9 | 102 |
| Eastern Europe (regions with low adult mortality) | 3.8 | 7.7 | 1.0 | 169 |
| Eastern Europe (regions with high adult mortality) | 3.9 | 8.1 | 1.8 | 84 |
| North America | 6.4 | 10.5 | 3.4 | 172 |
| Latin America | 4.6 | 9.2 | 1.8 | 393 |
| North Africa and Middle Eastern Crescent | 3.6 | 7.6 | 1.0 | 385 |
| Developed western Pacific | 4.3 | 7.0 | 1.5 | 189 |
| China and developing western Pacific | 4.0 | 8.0 | 6.0 | 336 |
| Indonesia, Thailand and Sri Lanka | 2.7 | 5.9 | 0.6 | 325 |
| India and south Asia | 1.9 | 4.3 | 1.8 | 314 |
| Africa | 1.6 | 3.5 | 0.5 | 235 |
| Combined values | 3.9 | 7.5 | 24.3 | 234 |
Data taken from Ferri et al. (2005).3