Results 21 to 30 of about 1,615,733 (299)

Covariant balance laws in continua with microstructure [PDF]

open access: yesReports on Mathematical Physics, 2009
The purpose of this paper is to extend the Green-Naghdi-Rivlin balance of energy method to continua with microstructure. The key idea is to replace the group of Galilean transformations with the group of diffeomorphisms of the ambient space. A key advantage is that one obtains in a natural way all the needed balance laws on both the macro and micro ...
Yavari, Arash, Marsden, Jerrold E.
openaire   +3 more sources

Squeezing the balloon: propensity scores and unmeasured covariate balance. [PDF]

open access: yesHealth Serv Res, 2013
ObjectiveTo assess the covariate balancing properties of propensity score‐based algorithms in which covariates affecting treatment choice are both measured and unmeasured.Data Sources/Study SettingA simulation model of treatment choice and outcome.Study DesignSimulation.Data Collection/Extraction MethodsEight simulation scenarios varied with the values
Brooks JM, Ohsfeldt RL.
europepmc   +4 more sources

Covariate balance.

open access: yes, 2022
Covariate balance: unweighted vs overlap weighted cohorts.
Adelino Leite-Moreira (3376820)   +2 more
core   +1 more source

Covariate balance of PSM sample.

open access: yes, 2022
Covariate balance of PSM sample.
Bofu Zhang (13132780)   +1 more
core   +1 more source

Optimal weighting for estimating generalized average treatment effects

open access: yesJournal of Causal Inference, 2022
In causal inference, a variety of causal effect estimands have been studied, including the sample, uncensored, target, conditional, optimal subpopulation, and optimal weighted average treatment effects.
Kallus Nathan, Santacatterina Michele
doaj   +1 more source

Demystifying Smoker's Paradox: A Propensity Score–Weighted Analysis in Patients Hospitalized With Acute Heart Failure

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2019
Background Smoker's paradox has been observed with several vascular disorders, yet there are limited data in patients with acute heart failure (HF). We examined the effects of smoking in patients with acute HF using data from a large multicenter registry.
Suhail A. Doi   +19 more
doaj   +1 more source

A framework for covariate balance using Bregman distances [PDF]

open access: yesScandinavian Journal of Statistics, 2020
AbstractA common goal in observational research is to estimate marginal causal effects in the presence of confounding variables. One solution to this problem is to use the covariate distribution to weight the outcomes such that the data appear randomized. The propensity score is a natural quantity that arises in this setting.
Kevin P. Josey   +3 more
openaire   +2 more sources

Covariate balance in matched and unmatched data.

open access: yes, 2023
Covariate balance in matched and unmatched data.
Luke N. Allen (8565882)   +1 more
core   +1 more source

Covariate Distribution Balance via Propensity Scores [PDF]

open access: yesSSRN Electronic Journal, 2018
SummaryThis paper proposes new estimators for the propensity score that aim to maximize the covariate distribution balance among different treatment groups. Heuristically, our proposed procedure attempts to estimate a propensity score model by making the underlying covariate distribution of different treatment groups as close to each other as possible.
Sant'Anna, Pedro H. C.   +2 more
openaire   +2 more sources

Covariate Balancing through Naturally Occurring Strata [PDF]

open access: yesHealth Services Research, 2016
ObjectiveTo provide an alternative to propensity scoring (PS) for the common situation where there are interacting covariates.SettingWe used 1.3 million assessments of residents of the United States Veterans Affairs nursing homes, collected from January 1, 2000, through October 9, 2012.DesignIn stratified covariate balancing (SCB), data are divided ...
Farrokh, Alemi   +2 more
openaire   +2 more sources

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