PAS11 PROPENSITY SCORE MATCHING WITH MORE THAN TWO CATEGORIES
نویسندگان
چکیده
منابع مشابه
Propensity Score Matching with Limited Overlap
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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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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Background: Previous studies suggested an impaired endothelial function in patients with diabetes. However, the validity of this finding may be limited by the lack of adequate adjustment for further cardiovascular confounders. We assessed endothelial function as measured by flow-mediated dilation (FMD) of the brachial artery in patients with either type 1 or type 2 diabetes in comparison with n...
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Cluster randomization trials with relatively few clusters have been widely used in recent years for evaluation of health-care strategies. On average, randomized treatment assignment achieves balance in both known and unknown confounding factors between treatment groups, however, in practice investigators can only introduce a small amount of stratification and cannot balance on all the important...
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ژورنال
عنوان ژورنال: Value in Health
سال: 2006
ISSN: 1098-3015
DOI: 10.1016/s1098-3015(10)64624-4