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AI 根据所提供的论文材料归类:摘要明确处理个体内重复测量、相关结构及纵向数量性状,与面板数据相关方法对应,但没有声称因果识别。

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Set-Based Tests for the Gene–Environment Interaction in Longitudinal Studies

纵向研究中基因与环境交互的集合检验

正在核对关联版本…

代码、数据与补充材料

正在核对对应版本的资源…

关注这篇论文的作者
Zihuai He
Min Zhang
Seunggeun Lee
Jennifer A. Smith
V. Diez Roux
Bhramar Mukherjee

纵向研究中基因与环境交互的集合检验

研究问题
对重复测量的数量性状,如何检验一组基因与环境的交互,同时应对个体内相关结构和高维主效应模型的误设?
方法与思路
作者提出广义得分型集合检验;基因与环境相关时使用筛法处理连续暴露主效应,并以加权主成分分析降低基因维度。
材料陈述的贡献
摘要称,检验对个体内相关误设稳健;基因与环境独立时也对主效应误设稳健,并在纵向血压研究中说明方法。
阅读关注点
应核对基因与环境独立条件的作用、相关情况下筛法消除偏差的要求,以及主成分降维对检验目标和功效的影响。
阅读边界
来源为版本未注明的索引摘要;摘要未给出筛法复杂度、渐近条件或功效数值,稳健性也不能直接解释为因果交互识别。

原文摘要

We propose a generalized score type test for set-based inference for gene-environment interaction with longitudinally measured quantitative traits. The test is robust to misspecification of within subject correlation structure and has enhanced power compared to existing alternatives. Unlike tests for marginal genetic association, set-based tests for gene-environment interaction face the challenges of a potentially misspecified and high-dimensional main effect model under the null hypothesis. We show that our proposed test is robust to main effect misspecification of environmental exposure and genetic factors under the gene-environment independence condition. When genetic and environmental factors are dependent, the method of sieves is further proposed to eliminate potential bias due to a misspecified main effect of a continuous environmental exposure. A weighted principal component analysis approach is developed to perform dimension reduction when the number of genetic variants in the set is large relative to the sample size. The methods are motivated by an example from the Multi-Ethnic Study of Atherosclerosis (MESA), investigating interaction between measures of neighborhood environment and genetic regions on longitudinal measures of blood pressure over a study period of about seven years with 4 exams.

笔记与分组
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