# life expectancy

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## expectancy

[ek-spek´tan-se]
the expected value or probability of occurrence for a specific event.
life expectancy the number of years, based on statistical averages, that a given person of a specific age, class, or other demographic variable may be expected to continue living.

## life expectancy

n.
The number of years that an individual is expected to live as determined by statistics.

## life expectancy

the probable number of years a person will live after a given age, as determined by mortality in a specific geographic area. It may be individually qualified by the person's condition or race, sex, age, or other demographic factors. Also called expectation of life.

## life expectancy

Longevity, period life expectancy Epidemiology The average length of life of persons in a population; the average number of yrs of life remaining for a population of persons, all of age x, and all subject for the remainder of their lives to the observed age-specific death rates corresponding to a current life table. See Life table.

## life expectancy

A statistical estimate of the number of years a person, of any particular age, is likely to live.

## life expectancy,

n the probable number of years a person will live after a given age, as determined by the mortality rate in a specific geographic area. This number may be individually qualified by the person's condition, race, sex, age, and other demographic factors.

## Patient discussion about life expectancy

Q. what is the life expectancy of a person with chronic bronchioectasis

A. depends on how severe are the infections...how your body reacts to those infections and what is the cause of those infections (cystic fibrosis??). i think only the therapist treating you can estimate. and even so - there are ways to prevent recurring infections. can slow the process of destruction and even stop it completely.

References in periodicals archive ?
The study published online in eLife -- a new peer-reviewed, open access journal -- defined average life span as the point at which half the members of a given test group remained alive.
The average life span of a healthy greyhound is around 14 years.
5 years even though the average life span of a properly maintained system is less than half that.
Researchers from Brigham Young University and the Harvard School of Public Health found that between 1978 and 2001, Americans' average life span increased almost three years to 77.
In 1966, when Respect-for-the-Aged Day became a national holiday, the average life span of Japanese males was 68.
For example, an HIV-positive patient starting CART at age 20 could be expected to live to 63--about 20 years shorter than the average life span of non-infected adults.
He said there is general agreement that the economy began its decline in July or August -- 10 months ago, or the average life span of a recession.
For some reason or perhaps not understanding the difference between life expectancy and average life span, the assumption has developed that people in the past had short lives.
Growing old in Hawai'i is easy; in fact the Aloha State leads the country in life expectancy, with an average life span of 81.
Its average life span is shorter, it has a shorter gestation period and normally tends to produce litters of several young.
The average life span of a dollar bill is fourteen months.
Benton County residents live longer than people in any other Oregon county, according to a report from the Harvard School of Public Health, while Klamath County has the shortest average life span.

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