Dementia prevalence increasing, incidence stabilizing (controlling for age)
The age-standardized prevalence of dementia grew steadily from 2002 to 2013: from 5.7% to 7.3% for women and from 4.7% to 6.1% for men. Age-standardized incidence remained steady at about 1.5% for women and about 1.4% for men. Thus factors other than an increase in new diagnoses contributed to this rise in prevalence, including the fact that Canadians with dementia now live longer. Prevalence is the proportion of people in a population who have a disease at a specified point in time. Incidence is the occurrence of new cases of a disease in an at-risk population over a specified period of time.
Public Health Agency of Canada. Public Health Infobase: Canadian Chronic Disease Surveillance System (CCDSS). Accessed February 28, 2018.