Mohammad Ali Mansournia, Maryam Nazemipour, Mahyar Etminan
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引用次数: 0
Abstract
Background: The propensity score (PS) is the probability of exposure given the confounders and the disease risk score (DRS) is the probability of disease given confounders and the exposure, setting the exposure to a fixed value. PS and DRS are balancing scores and frequently used for confounding adjustment, especially in the presence of high-dimensional confounding.
Methods: Here, we use causal diagrams to present the role of PS and DRS in confounding adjustment.
Results: We graphically show the balancing properties of theoretical PS and DRS: conditional on PS, the exposure is independent of the confounders, and conditional on DRS, the potential outcome under no exposure is independent of the confounders. Moreover, we illustrate how PS and DRS can be used in the analysis for confounding adjustment.
Conclusion: Causal diagrams can help researchers to better understand confounding adjustment by using PS and DRS.
期刊介绍：
The International Journal of Epidemiology is a vital resource for individuals seeking to stay updated on the latest advancements and emerging trends in the field of epidemiology worldwide.
The journal fosters communication among researchers, educators, and practitioners involved in the study, teaching, and application of epidemiology pertaining to both communicable and non-communicable diseases. It also includes research on health services and medical care.
Furthermore, the journal presents new methodologies in epidemiology and statistics, catering to professionals working in social and preventive medicine. Published six times a year, the International Journal of Epidemiology provides a comprehensive platform for the analysis of data.
Overall, this journal is an indispensable tool for staying informed and connected within the dynamic realm of epidemiology.
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