Propensity score methods for confounding control in nonexperimental research.
نویسندگان
چکیده
منابع مشابه
Propensity scores for confounder adjustment when assessing the effects of medical interventions using nonexperimental study designs.
Treatment effects, especially when comparing two or more therapeutic alternatives as in comparative effectiveness research, are likely to be heterogeneous across age, gender, co-morbidities and co-medications. Propensity scores (PSs), an alternative to multivariable outcome models to control for measured confounding, have specific advantages in the presence of heterogeneous treatment effects. I...
متن کاملPROPENSITy SCORE fOR CONfOuNDING ADjuSTMENT IN HEALTH CARE DATABASES Propensity score methodology for confounding control in health care utilization databases
Propensity score (PS) methodology is a common approach to control for confounding in nonexperimental studies of treatment effects using health care utilization databases. This methodology offers researchers many advantages compared with conventional multivariate models: it directly focuses on the determinants of treatment choice, facilitating the understanding of the clinical decision-making pr...
متن کاملA 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.
OBJECTIVE 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. STUDY DESIGN AND METHODS Using PubM...
متن کاملاستفاده از Propensity Score برای همسان سازی نمونه ها در یک مطالعه مورد شاهدی
Background and Aim: Case-Control studies provide evidence in the area of health. Validity and accuracy of such studies depend to a large extent on the similarity (similar distributions) of the case and control groups according to confounding variables. Matching is a method for controlling or eliminating the effects of important confounders. Matching using propensity score has recently been intr...
متن کاملCausal Inference in Anesthesia and Perioperative Observational Studies
Purpose of Review Observational studies are of great importance to anesthesia and perioperative care research, as they reflect routine clinical practice. However, because observational data are nonexperimental, assigning causality to identified relationships has a significant risk of bias. After describing the pros and cons of observational studies, we provide an overview of the different metho...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Circulation. Cardiovascular quality and outcomes
دوره 6 5 شماره
صفحات -
تاریخ انتشار 2013