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• W2037135054 endingPage "437.e24" @default.
• W2037135054 startingPage "437.e1" @default.
• W2037135054 abstract "Propensity score (PS) analyses attempt to control for confounding in nonexperimental studies by adjusting for the likelihood that a given patient is exposed. Such analyses have been proposed to address confounding by indication, but there is little empirical evidence that they achieve better control than conventional multivariate outcome modeling. Using PubMed and Science Citation Index, we assessed the use of propensity scores over time and critically evaluated studies published through 2003. Use of propensity scores increased from a total of 8 reports before 1998 to 71 in 2003. Most of the 177 published studies abstracted assessed medications (N = 60) or surgical interventions (N = 51), mainly in cardiology and cardiac surgery (N = 90). Whether PS methods or conventional outcome models were used to control for confounding had little effect on results in those studies in which such comparison was possible. Only 9 of 69 studies (13%) had an effect estimate that differed by more than 20% from that obtained with a conventional outcome model in all PS analyses presented. Publication of results based on propensity score methods has increased dramatically, but there is little evidence that these methods yield substantially different estimates compared with conventional multivariable methods." @default.
• W2037135054 created "2016-06-24" @default.
• W2037135054 creator A5004416630 @default.
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• W2037135054 creator A5037322697 @default.
• W2037135054 creator A5043069598 @default.
• W2037135054 creator A5072315622 @default.
• W2037135054 creator A5080943017 @default.
• W2037135054 date "2006-05-01" @default.
• W2037135054 modified "2023-10-18" @default.
• W2037135054 title "A review of the application of propensity score methods yielded increasing use, advantages in specific settings, but not substantially different estimates compared with conventional multivariable methods" @default.
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