Inequality in mortality decreased among the young while increasing for older adults, 1990-2010
Inequality in mortality decreased among the young while increasing for older adults, 1990-2010
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DOI：
10.1126/science.aaf1437
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发表时间：
2016-05-06
期刊：
影响因子：
56.9
通讯作者：
Schwandt, H.
中科院分区：
文献类型：
--
作者：
Currie, J.;Schwandt, H.
最近的许多研究都指出，在过去20年里，美国的死亡率差距越来越大。这些研究通常使用中老年人的死亡率。我们使用美国各县的贫困水平排名作为分析1990年、2000年和2010年所有年龄组死亡率不平等的基础。与之前的研究一致，我们发现老年人死亡率的不平等日益加剧。然而，对于20岁以下的儿童和年轻人，我们发现在较贫穷的县，死亡率的显著改善最为明显，这意味着死亡率不平等的显著减少。这些年轻的群体将构成未来的美国成年人口，因此这项研究表明，老年死亡率的不平等可能会下降。
Many recent studies point to increasing inequality in mortality in the United States over the past 20 years. These studies often use mortality rates in middle and old age. We used poverty level rankings of groups of U.S. counties as a basis for analyzing inequality in mortality for all age groups in 1990, 2000, and 2010. Consistent with previous studies, we found increasing inequality in mortality at older ages. For children and young adults below age 20, however, we found strong mortality improvements that were 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.