U.S. Lifespans Lags Other High-Income Countries, Tied to Mortality Rates Under Age 50, University of Pennsylvania Study

Published: Mar 14, 2013

Higher mortality rates among Americans younger than 50 are responsible for much of why life expectancy is lower in the United States than most of the world's most developed nations. The research, by Jessica Ho, a University of Pennsylvania doctoral candidate in demography and sociology, found that excess mortality among Americans younger than 50 accounted for two-thirds of the gap in life expectancy at birth between American males and their counterparts and two-fifths between females and their counterparts in the comparison countries.

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