Bayesian Weighted Sums: A Flexible Approach to Estimate Summed Mixture Effects.

Bayesian Weighted Sums: A Flexible Approach to Estimate Summed Mixture Effects.
复制标题

DOI:
10.3390/ijerph18041373
复制
发表时间:
2021-02-03
影响因子:
--
通讯作者:
Newschaffer C
Newschaffer C
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Hamra GB;Maclehose RF;Croen L;Kauffman EM;Newschaffer C

文献摘要

参考文献

相似文献

目的:研究暴露混合物的方法是存在的,但每种方法都有不同的研究问题。我们提出了一种新的方法,侧重于估计一个或多个暴露混合物的总效应和个体权重:贝叶斯加权和(BWS)。方法:我们将BWS应用于具有相关暴露的模拟和真实的数据集。在我们的现实世界的例子中的分析背景是多溴二苯醚(PBDE)同系物(28,47,99,100和153)和自闭症谱系障碍(ASD)诊断和社会反应评分(SRS)之间的关联估计。结果:仿真结果表明,BWS性能可靠。在使用早期自闭症风险纵向调查(EARLI)数据的调整模型中,多溴二苯醚加权总和增加1个单位的ASD几率为1.41(95%最高后验密度0.82,2.50)倍,多溴二苯醚加权总和每增加1个单位,z评分标准化SRS的变化为0.15(95%最高后验密度-0.08,0.38)。结论:BWS提供了一种估计混合物中单个组分的总效应和权重的方法。这种方法与其他曝光混合工具不同。生物武器系统可能比现有的方法更灵活,可以根据流行病学或毒理学的先验知识规定允许多个接触组。
Objectives: Methods exist to study exposure mixtures, but each is distinct in the research question it aims to address. We propose a new approach focused on estimating both the summed effect and individual weights of one or multiple exposure mixtures: Bayesian Weighted Sums (BWS). Methods: We applied BWS to simulated and real datasets with correlated exposures. The analytic context in our real-world example is an estimation of the association between polybrominated diphenyl ether (PBDE) congeners (28, 47, 99, 100, and 153) and Autism Spectrum Disorder (ASD) diagnosis and Social Responsiveness Scores (SRS). Results: Simulations demonstrate that BWS performs reliably. In adjusted models using Early Autism Risk Longitudinal Investigation (EARLI) data, the odds of ASD for a 1-unit increase in the weighted sum of PBDEs were 1.41 (95% highest posterior density 0.82, 2.50) times the odds of ASD for the unexposed and the change in z-score standardized SRS per 1 unit increase in the weighted sum of PBDEs is 0.15 (95% highest posterior density −0.08, 0.38). Conclusions: BWS provides a means of estimating the summed effect and weights for individual components of a mixture. This approach is distinct from other exposure mixture tools. BWS may be more flexible than existing approaches and can be specified to allow multiple exposure groups based on a priori knowledge from epidemiology or toxicology.
DOI: 10.1097/ede.0b013e31827623ea
发表时间: 2013-01
期刊: Epidemiology (Cambridge, Mass.)
影响因子: --
作者:
Hamra G;Richardson D;Maclehose R;Wing S
通讯作者: Wing S
DOI: 10.1016/j.jaac.2012.12.011
发表时间: 2013-03-01
影响因子: 13.3
作者:
Messinger, Daniel;Young, Gregory S.;Sigman, Marian
通讯作者: Sigman, Marian
DOI: 10.1016/j.atmosenv.2005.10.022
发表时间: 2006-02-01
影响因子: 5
作者:
Roberts, S;Martin, MA
通讯作者: Martin, MA
DOI: 10.1289/ehp.1510569
发表时间: 2016-01
影响因子: 10.4
作者:
Braun JM;Gennings C;Hauser R;Webster TF
通讯作者: Webster TF
DOI: 10.1136/oemed-2013-101665
发表时间: 2014-02-01
影响因子: 4.9
作者:
Hamra, Ghassan Badri;MacLehose, Richard;Daniels, Robert D.
通讯作者: Daniels, Robert D.