Propensity score matching with R: conventional methods and new features
نویسندگان
چکیده
منابع مشابه
Head to head comparison of the propensity score and the high-dimensional propensity score matching methods.
BACKGROUND Comparative performance of the traditional propensity score (PS) and high-dimensional propensity score (hdPS) methods in the adjustment for confounding by indication remains unclear. We aimed to identify which method provided the best adjustment for confounding by indication within the context of the risk of diabetes among patients exposed to moderate versus high potency statins. M...
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Matching is an R package which provides functions for multivariate and propensity score matching and for finding optimal covariate balance based on a genetic search algorithm. A variety of univariate and multivariate metrics to determine if balance actually has been obtained are provided. The underlying matching algorithm is written in C++, makes extensive use of system BLAS and scales efficien...
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In this article, we have demostrated the application of two newly proposed estimators which accounts for lack of overlap under propensity score matching on a case study involing the analysis of health expenditure data for the United States. Citation: Baser, Onur, (2007) "Propensity Score Matching with Limited Overlap." Economics Bulletin, Vol. 9, No. 8 pp. 1-8 Submitted: March 17, 2007. Accepte...
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This paper considers causal inference and sample selection bias in nonexperimental settings in which (i) few units in the nonexperimental comparison group are comparable to the treatment units, and (ii) selecting a subset of comparison units similar to the treatment units is difficult because units must be compared across a high-dimensional set of pretreatment characteristics. We discuss the us...
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Introduction: The main task of the emergency medical system is to provide primary care and transfer the injured to a medical center. Studies have been conducted to investigate the outcome of helicopter and ground ambulance casualties, but they show different results. These different results may be due to the type of study, statistical methods, differences in pre-hospital emergency systems, an...
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ژورنال
عنوان ژورنال: Annals of Translational Medicine
سال: 2021
ISSN: 2305-5839,2305-5847
DOI: 10.21037/atm-20-3998