DESK REVIEWS | 06.02.08. What is the average number of years lived by people who have with dementia?

DESK REVIEW | 06.02.08. What is the average number of years lived by people who have with dementia?

No information was found specifically regarding dementia in this question. However, a longitudinal study conducted in São Paulo on Life Expectancy with Cognitive Impairment (LEWCI) showed that at the age of 60 years LEWCI was 1.9 years among men but varied between 3.4 years for men with no schooling and 0.6 years for men with 8 years of schooling. For women, the LEWCI was 3.1 years, varying from 4.5 years among women with no schooling to 1.0 years among those with 8 years of schooling (Andrade et al., 2019).


Andrade, F. C. D., Corona, L. P., & de Oliveira Duarte, Y. A. (2019). Educational Differences in Cognitive Life Expectancy Among Older Adults in Brazil. Journal of the American Geriatrics Society, 67(6), 1218–1225.

We found no data on the average number of years lived by people living with dementia.

In Kenya, the average life expectancy is 66.7 years  (64.4 years for males and 68.9 years for females) (World Health Rankings, 2018). The average life expectancy for persons with dementia in Kenya is not yet available.  However, it varies depending on the type and of dementia, its severity at the time of diagnosis, age, sex, and general health (Brodaty et al., 2012). For instance, the life expectancy for a person with Alzheimer’s disease can vary between 3 to 10 years. Since the main predictor is age, caregiver and providers should plan on a median life span of between 7 to 10 years for persons whose diagnosis was made while in their early 60’s or 70’s and three years or less for those diagnosed at the age of around 90 years (Zanetti et al., 2009).


Brodaty, H., Seeher, K., & Gibson, L. (2012). Dementia time to death: A systematic literature review on survival time and years of life lost in people with dementia. International Psychogeriatrics, 24(7), 1034-1045.

World Health Rankings. (2018). Health Profile: Kenya.

Zanetti, O., Solerte, S. B., & Cantoni, F. (2009). Life expectancy in Alzheimer’s disease (AD). Archives of Gerontology and Geriatrics, 49, 237–243.

No data is yet available.