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Effects of Adjusting for Instrumental Variables on Bias and Precision of Effect Estimates
Recent theoretical studies have shown that conditioning on an instrumental variable (IV), a variable that is associated with exposure but not associated with outcome except through exposure, can increase both bias and variance of exposure effect estimates. Although these findings have obvious implic...
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| Main Authors: | , , , , , , , |
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| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado em: |
Oxford University Press
2011
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| Assuntos: | |
| Acesso em linha: | https://ncbi.nlm.nih.gov/pmc/articles/PMC3254160/ https://ncbi.nlm.nih.gov/pubmed/22025356 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1093/aje/kwr364 |
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