Table 4

Prevalence of neurodegenerative disorders and learning disability in middle-aged people with and without dementia

Presence of comorbid conditionNumber of individuals without dementiaNumber of individuals with dementiaOR (95% CI)*Adjusted OR (95% CI)
Parkinson's disease
 Yes389913.5 (7 to 26.3)8.7 (4.4 to 16.9)
 No614 7951952
Learning disability
 Yes2679276.5 (4.4 to 9.5)7.1 (4.8 to 10.4)
 No612 7051034
Multiple sclerosis
 Yes252592.1 (1.1 to 4.0)1.8 (0.9 to 3.4)
 No612 6591052
  • *Adjusted for age/gender/socioeconomic status.