Table 2.

Prevalence of different types of dementia in the 45- to 64-year age group for women and men per 100,000 in Cambridgeshire

DiagnosisMenWomenTotal
No. of patientsPrevalence (95% CI)No. of patientsPrevalence (95% CI)No. of patientsPrevalence (95% CI)
* One patient with Huntington’s disease was aged <45 years and hence excluded.
† Parkinsonian syndromes included one patient each with corticobasal degeneration, PD, and multisystem atrophy and two patients with parkinsonism-plus syndromes. There were no patients with progressive supranuclear palsy or diffuse Lewy body disease aged <65 years on the census date.
AD410.9 (4.2–28.1)719.3 (9.4–39.9)1115.1 (8.4–27.0)
Frontotemporal dementia1027.3 (14.9–50.2)12.8 (0.5–15.6)1115.1 (8.4–27.0)
Vascular dementia410.9 (4.2–28.1)25.5 (1.5–20.1)68.2 (3.8–17.9)
Huntington’s disease821.8 (11.1–43.1)616.6 (7.6–36.2)14*19.2 (11.5–32.3)
Parkinsonian syndromes410.9 (4.2–28.1)12.8 (0.5–15.6)56.9 (2.9–16.1)
Total cases of dementia37101.0 (73.3–139.2)2260.8 (40.2–92)59*81.0 (62.8–104.5)