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AI 根据所提供的论文材料归类:摘要明确比较潜在结果框架下的因果分解,并以混杂结构和中介关系指导方法选择,直接对应因果推断。

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关注这篇论文的作者
Soojin Park
Su Yeon Kim
Chioun Lee

传统分解与因果分解何时分歧?健康差异研究的实用指南

研究问题
研究健康与社会差异时,传统系数差和 Kitagawa–Oaxaca–Blinder 分解为何可能与潜在结果方法得出不同结论?
方法与思路
作者结合系统综述、因果图和比较模拟,分别讨论无未测混杂,以及中间混杂变量—中介、中介—结果关系存在未测混杂的情形。
材料陈述的贡献
摘要称提供依据混杂结构选择分解方法的直观指引,并通过教育程度与晚年认知种族差异的案例展示这些建议。
阅读关注点
应核对不同分解方法是否针对相同目标量、因果图对应哪些假设,以及两类未测混杂如何改变各方法的解释与偏差。
阅读边界
这是 arXiv 预印本,同行评审与期刊接收均未核实;摘要未报告具体模拟结果或推荐规则,不能据此认定某类方法普遍优越。

原文摘要

Identifying malleable factors that can reduce social disparities is a central objective among researchers across disciplines. Traditionally, researchers have relied on the difference-in-coefficients and Kitagawa-Oaxaca-Blinder frameworks. More recently, methods grounded in the potential outcomes framework have emerged. While these methods share the same goal of identifying drivers of disparity, they frequently yield divergent results depending on the underlying confounding structures and research settings. Despite these significant differences, applied researchers lack clear guidance on selecting appropriate methods for their specific research contexts. To address this gap, this study provides a systematic review and offer an intuitive guidance through Directed Acyclic Graphs and comparative simulation studies. We begin by reviewing each method assuming no unmeasured confounding, which is often violated in observational settings. Consequently, we extend our analysis to two realistic scenarios: 1) unmeasured confounding exists in the relationship between intermediate confounders and the mediator, and 2) unmeasured confounding exists in the relationship between the mediator and the outcome. Finally, we illustrate these recommendations through a case study examining the role of educational attainment in explaining racial disparities in later-life cognition.

笔记与分组
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