The answer depends on many different factors, including what's causing the dementia. For Alzheimer's, for example, factors include the age at diagnosis, severity of symptoms, and general health status. Nor is there a textbook progression to the disease; some people go downhill quickly after diagnosis, while others can live with the disease for 10 or more years.
Negative.
At 80 years old she's already beaten the odds (life expectancy for females generally in developed countries is somewhere in the 70s), and it kind of stops making sense to talk about "life expectancy"... it depends on a lot of factors. She could drop dead tomorrow or she could live for another 30 years.
Dementia isn't an "illness" in the sense that you die from it. It can be a contributing factor (someone with dementia is a bit more likely to wander out into traffic, or less dramatically, to forget to take medications). You really need to get an opinion from a physician who has examined the person in question and is familiar with her overall state of health.
If you're friends with an insurance actuary, you could try asking them, but I'm not sure the actuarial tables go into that level of detail (breaking out people with dementia from those that don't).
The prognosis for dementia depends on the underlying disease. On average, people with Alzheimer's disease live eight years past their diagnosis, with a range from one to twenty years
They live demented.
eight
5 years
Nobody is "average".
Average: 73.1 Male: 70.77 Female: 75.55
The average life expectancy is 72.
There really is no life expectancy when you get past the average life expectancy age of 78.
Why not. If they stay together they'll at least have the same life expectancy.
The life expectancy of a male born in Canada in 1951 is 66 years of age. The life expectancy of a female born in the same year is 71 years of age.
It depends on the country. For example in some poor countries 79 years old is a big deal while in Japan (the country with the highest life expectancy rate) it isn't that much.
life expectancy of 82 year old white male
dese nuts
The life expectancy of a grasshopper is a full year. 50 percent of all grasshoppers do not make it past the nymph stage.
The life expectancy for anyone with CHF varies. It depends on which stage of the disease a person is in. Many people live 10 years or longer with CHF, if it is treated properly. Of course, a person's general health and age are also factors.
Kenya's life expectancy is estimated to be 61.08 years. This is based on the statistics of the year 2013 which means that it may fluctuate gradually.