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Selection of confounding variables should not be based on observed associations with exposure

In observational studies, selection of confounding variables for adjustment is often based on observed baseline incomparability. The aim of this study was to evaluate this selection strategy. We used clinical data on the effects of inhaled long-acting beta-agonist (LABA) use on the risk of mortality...

Disgrifiad llawn

Wedi'i Gadw mewn:
Manylion Llyfryddiaeth
Prif Awduron: Groenwold, Rolf H. H., Klungel, Olaf H., Grobbee, Diederick E., Hoes, Arno W.
Fformat: Artigo
Iaith:Inglês
Cyhoeddwyd: Springer Netherlands 2011
Pynciau:
Mynediad Ar-lein:https://ncbi.nlm.nih.gov/pmc/articles/PMC3168755/
https://ncbi.nlm.nih.gov/pubmed/21796419
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1007/s10654-011-9606-1
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