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life expectancy
life expectancy Life expectancy is a population-level measure of health and well-being that estimates how many more years people at a particular age would be expected to live if the current pattern of death rates continued.
Life expectancy is a population-level measure of health and well-being that estimates how many more years people at a particular age would be expected to live if the current pattern of death rates continued. The version used most often is life expectancy at birth, which summarizes the average lifespan expected for newborns under present mortality conditions.