On the relationship of sufficient component cause models with potential outcome (counterfactual) models

被引:40
作者
Flanders, W. Dana [1 ]
机构
[1] Emory Univ, Rollins Sch Publ Hlth, Atlanta, GA 30345 USA
关键词
causality; sufficient-component cause; counterfactual; exchangeability; interaction; confounding;
D O I
10.1007/s10654-006-9048-3
中图分类号
R1 [预防医学、卫生学];
学科分类号
1004 ; 120402 ;
摘要
The sufficient-component cause (SSC) model provides a useful, concise method to conceptualize and organize ideas concerning biologic effects and interactions of multiple factors. Another type of model, the potential outcome or counterfactual models, has also proved useful in epidemiology, providing insights into definitions of effects, exchangeability and confounding, and selection bias. Prior work has shown important links between these two types of models. Here, we show additional connections between the two types of models. We first review basic concepts for both the SSC model and the potential outcome models. We then indicate additional similarities between them, and derive a quantitative link. Our results show that the SSC model actually corresponds to a unique response pattern in a particular potential outcome model. Recognition of the links between the two models should allow greater insight into use of each model, and allow the strengths of both models to be used jointly.
引用
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页码:847 / 853
页数:7
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