us ranks 31 for life expectancy at birth.
us ranks 31 for life expectancy at birth.
where does the us rank for life expectancy at birth?
31
according to the world health organization, life expectancy in the u.s. is 31st in the world (out of 183 countries) as of 2015. the u.s.’s average life expectancy (both sexes) is just over 79. japan ranks first with an average life expectancy of nearly 84 years. sierra leone ranks last with a life expectancy of just over 50 years. however, the u.s. ranks lower (36th) when considering health-adjusted life expectancy (hale) at just over 69 years. another source, the central intelligence agency, indicates life expectancy at birth in the u.s. is 79.8, ranking the u.s. 42nd in the world. monaco is first on this list of 224, with an average life expectancy of 89.5. chad is last with 50.2.
health care in the united states
life expectancy is commonly confused with the average age an adult could expect to live. this confusion may create the expectation that an adult would be unlikely to exceed an average life expectancy, even though, with all statistical probability, an adult, who has already avoided many statistical causes of adolescent mortality, should be expected to outlive the average life expectancy calculated from birth. one must compare life expectancy of the period after childhood, to estimate the life expectancy of an adult. life expectancy can change dramatically after childhood, even in preindustrial times as is demonstrated by the roman life expectancy table, which estimates life expectancy to be 25 years "at birth", but 53 years upon reaching age 25. studies like plymouth plantation; "dead at forty" and life expectancy by age, 1850–2004 similarly show a dramatic increase in life expectancy once adulthood was reached.
life expectancy