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To: i-node who wrote (64296)4/3/2018 1:46:11 PM
From: TimF  Read Replies (1) | Respond to of 364383
 
You point out the main problem with using life expectancy as a proxy for the medical care quality and availability.

A secondary, smaller, problem is that differences in the measurement of infant mortality (which is also used in such comparisons), impact calculations of life expectancy. Don't count the baby as a live birth and then a death, well you just avoided averaging in an instance of minutes to days in to the life expectancy calculations. Sure most births, and certainly most deaths, don't fall in to the area where these is different treatment. But a relatively small number can effect the calculation when your adding a very low figure. If you have 50 people all dying on the 78th birthday, and then one dies at 76, it doesn't impact the average much (78 to 77.96). But if you have 50 die at 78 and then add one in at 1/100th of a year and you've just dropped the average from 78 to 76.47.



To: i-node who wrote (64296)4/3/2018 2:02:39 PM
From: zzpat  Respond to of 364383
 
I use the CIA numbers so this is what they say, "Life expectancy at birth compares the average number of years to be lived by a group of people born in the same year, if mortality at each age remains constant in the future. Life expectancy at birth is also a measure of overall quality of life in a country and summarizes the mortality at all ages."