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Currie and Schwandt (2016) 貧富間の死亡率格差

死亡率格差を扱ったキュリー大先生の論文.社会科学者がサイエンスに論文載せるというのは凄いこと.貧困層と非貧困層では死亡率が有意に異なるという死亡率格差がアメリカでは久しく言われているが,そうした研究の多くは中・高年齢層をターゲットにしていた.それ以外の年齢層はどうなのというモチベーションで分析を行ったのが本論文.若いコーホートでは貧富間の死亡率格差は縮まっているそう.

Currie, J., Schwandt, H., Chetty, R., Stepner, M., Abraham, S., Lin, S., … Crimmins, E. M. (2016). Inequality in mortality decreased among the young while increasing for older adults, 1990-2010. Science (New York, N.Y.), 352(6286), 708–12.  

 Abstract

Many recent studies point to increasing inequality in mortality in the U.S. over the past twenty years. These studies often use mortality rates in middle and old age. Here we study inequality in mortality for all age groups in 1990, 2000, and 2010. Our analysis is based on groups of counties ranked by their poverty levels. Consistent with previous studies, we find increasing inequality in mortality at older ages. For children and young adults below age 20, however, we find strong mortality improvements that are most pronounced in poorer counties, implying a strong decrease in mortality inequality. These younger cohorts will form the future adult U.S. population, so this research suggests that inequality in old age mortality is likely to decline in future.