How is life expectancy calculated?

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Are causes of death factored?

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Anonymous 0 Comments

Are causes of death factored? Yes, but perhaps not how you’re asking. They’re inherently built in because life expectancy is based on actual lives, not the expected age a human body could live to if no outside forces were applied.

It should be noted that life expectancy is measuring the average age a person will likely live to based on their current age, though it’s usually quoted as life expectancy *from birth* (i.e. ~77 years old). Life expectancy [changes as you age](https://www.ssa.gov/oact/STATS/table4c6.html) because people have died at earlier ages than you, which affects life expectancy. For example, life expectancy from birth may be 77, but for a 77 year old life expectancy is 10 years. Made it to 87? Now it’s 5 years.

Another interesting metric is *death probability*. In the link above you’ll see its relatively high at birth (0.006%), then plummets, then reaches the probability at birth at around age 53.

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