Age specific prevalence rates for the most common causes of young onset dementia
| Alzheimer’s disease | Vascular dementia | Frontotemporal dementia | Alcohol related dementia | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Age range | n | Rate* | 95% CI | n | Rate* | 95% CI | n | Rate* | 95% CI | n | Rate | 95% CI |
| *Rate per 100 000 people at risk. | ||||||||||||
| 40–44 | 1 | 2.6 | (0.7 to 14.4) | |||||||||
| 45–49 | 2 | 6.0 | (0.7 to 21.7) | 4 | 12.0 | (3.3 to 30.7) | 2 | 6.0 | (0.7 to 21.7) | |||
| 50–54 | 5 | 16.4 | (5.3 to 38.4) | 2 | 6.6 | (0.8 to 24.4) | 1 | 3.3 | (0.8 to 18.3) | 6 | 19.7 | (7.2 to 42.9) |
| 55–59 | 14 | 50.7 | (27.7 to 85.1) | 9 | 32.6 | (14.9 to 67.9) | 7 | 25.4 | (10.2 to 52.2) | 5 | 18.1 | (5.9 to 42.3) |
| 60–64 | 20 | 77.3 | (47.2 to 119) | 10 | 38.7 | (18.5 to 71.1) | 6 | 23.2 | (8.5 to 50.5) | 3 | 11.6 | (2.4 to 33.9) |
| 30–64 | 42 | 17.4 | (12.6 to 23.6) | 21 | 8.7 | (5.4 to 13.3) | 18 | 7.5 | (4.4 to 11.8) | 16 | 6.6 | (3.8 to 10.8) |
| 45–64 | 41 | 35.0 | (25.1 to 47.4) | 21 | 17.9 | (11.1 to 27.4) | 18 | 15.4 | (9.1 to 24.3) | 16 | 13.6 | (7.8 to 22.2) |