The average life expectancy of people diagnosed with dementia ranges from 9 years at age 60 to 4.5 years at age 85 for women and from 6.5 to just over 2 years, respectively, in men, finds a systematic review of the latest evidence in The BMJ today.

Average life expectancy for patients with dementia ranges from 8.9 years after diagnosis at a mean age of 60 years for women to 2.2 years at a mean age of 85 years for men, according to a study published online Jan.

A new study has revealed that dementia reduced life expectancy by about two years for people with a diagnosis at age 85, 3-4 years with a diagnosis at age 80, and up to 13 years with a diagnosis at age 65.