Results 31 to 40 of about 1,368,972 (211)

Learning Adjustment Sets from Observational and Limited Experimental Data

open access: yes, 2020
Estimating causal effects from observational data is not always possible due to confounding. Identifying a set of appropriate covariates (adjustment set) and adjusting for their influence can remove confounding bias; however, such a set is typically not ...
Cooper, Gregory, Triantafillou, Sofia
core   +2 more sources

The Importance of Scale for Spatial-Confounding Bias and Precision of Spatial Regression Estimators [PDF]

open access: yes, 2009
Residuals in regression models are often spatially correlated. Prominent examples include studies in environmental epidemiology to understand the chronic health effects of pollutants.
Paciorek, Christopher J.
core   +3 more sources

A note on a sensitivity analysis for unmeasured confounding, and the related E-value

open access: yesJournal of Causal Inference, 2020
Unmeasured confounding is one of the most important threats to the validity of observational studies. In this paper we scrutinize a recently proposed sensitivity analysis for unmeasured confounding.
Sjölander Arvid
doaj   +1 more source

Associations of employment sector and occupational exposures with full and part-time sickness absence: random and fixed effects analyses on panel data

open access: yesScandinavian Journal of Work, Environment & Health, 2022
OBJECTIVE: We aimed to investigate the influence of unobserved individual characteristics in explaining the effects of work-related factors on full (fSA) and part-time sickness absence (pSA). METHODS: We used register-based panel data for the period 2005–
Elli Hartikainen   +3 more
doaj   +1 more source

Confounding

open access: yesIndian Journal of Psychiatry, 2007
Confounding is a statistical concept that is important to all researchers.The concept of confounding is explained with the help of an amusing but true example. Simple explanations about and examples of confounding are provided. Methods to deal with confounding are detailed and their applications and disadvantages are examined.Attention to confounding ...
openaire   +2 more sources

Simple yet sharp sensitivity analysis for unmeasured confounding

open access: yesJournal of Causal Inference, 2022
We present a method for assessing the sensitivity of the true causal effect to unmeasured confounding. The method requires the analyst to set two intuitive parameters. Otherwise, the method is assumption free. The method returns an interval that contains
Peña Jose M.
doaj   +1 more source

Recovery and inference of causal effects with sequential adjustment for confounding and attrition

open access: yesJournal of Causal Inference
Confounding bias and selection bias bring two significant challenges to the validity of conclusions drawn from applied causal inference. The latter can stem from informative missingness, such as in cases of attrition.
de Aguas Johan   +3 more
doaj   +1 more source

Sensitivity Analysis for Multiple Comparisons in Matched Observational Studies through Quadratically Constrained Linear Programming

open access: yes, 2015
A sensitivity analysis in an observational study assesses the robustness of significant findings to unmeasured confounding. While sensitivity analyses in matched observational studies have been well addressed when there is a single outcome variable ...
Fogarty, Colin B., Small, Dylan S.
core   +2 more sources

Migraine and risk of stroke and acute coronary syndrome in two case-control studies in the Danish population

open access: yesClinical Epidemiology, 2017
Merete Osler,1,2 Ida Kim Wium-Andersen,1,3 Martin Balslev Jørgensen,3 Terese Sara Høj Jørgensen,1,2 Marie Kim Wium-Andersen1 1Research Center for Prevention and Health, Rigshospitalet – Glostrup, Copenhagen University, Glostrup,
Osler M   +4 more
doaj  

Confounding explanations. . . .

open access: yesBehavioral and Brain Sciences, 2001
I argue that, while Finlay et al, are correct to suggest that there are developmental regularities (or constraints) acting on brain component evolution, they are incorrect to infer from this that a developmental explanation necessarily implies that structural changes preceded functional use. Developmental and functional (adaptationist) explanations are
openaire   +1 more source

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