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Decomposing Current Mortality Differences Into Initial Differences and Differences in Trends: The Contour Decomposition Method

机译:将当前死亡率差异分解为初始差异和趋势差异:轮廓分解法

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摘要

This study proposes a new decomposition method that permits a difference in an aggregate measure at a final time point to be split into additive components corresponding to the initial differences in the event rates of the measure and differences in trends in these underlying event rates. For instance, when studying divergence in life expectancy, this method allows researchers to more easily contrast age-specific mortality trends between populations by controlling for initial age-specific mortality differences. Two approaches are assessed: (1) an additive change method that uses logic similar to cause-of-death decomposition, and (2) a contour decomposition method that extends the stepwise replacement algorithm along an age-period demographic contour. The two approaches produce similar results, but the contour method is more widely applicable. We provide a full description of the contour replacement method and examples of its application to life expectancy and lifetime disparity differences between the United States and England and Wales in the period 1980–2010.Electronic supplementary materialThe online version of this article (doi:10.1007/s13524-017-0599-6) contains supplementary material, which is available to authorized users.
机译:这项研究提出了一种新的分解方法,该方法允许将最终时间点的总体度量差异分为对应于度量事件发生率的初始差异和这些潜在事件发生趋势的差异的加性成分。例如,当研究预期寿命差异时,该方法允许研究人员通过控制初始的特定年龄死亡率差异,更容易地对比人群之间的特定年龄死亡率趋势。评估了两种方法:(1)使用类似于死亡原因分解的逻辑的加法更改方法,以及(2)沿年龄人口统计轮廓线扩展逐步替换算法的轮廓分解方法。两种方法产生相似的结果,但是轮廓法应用更广泛。我们提供了轮廓替换方法的完整说明,并举例说明了其在美国与英格兰和威尔士之间1980-2010年间的预期寿命和寿命差异的应用。电子补充材料本文的在线版本(doi:10.1007 / s13524-017-0599-6)包含补充材料,授权用户可以使用。

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