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Controlling Time-Dependent Confounding by Health Status and Frailty: Restriction Versus Statistical Adjustment

Nonexperimental studies of preventive interventions are often biased because of the healthy-user effect and, in frail populations, because of confounding by functional status. Bias is evident when estimating influenza vaccine effectiveness, even after adjustment for claims-based indicators of illnes...

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Detalhes bibliográficos
Publicado no:Am J Epidemiol
Main Authors: McGrath, Leah J., Ellis, Alan R., Brookhart, M. Alan
Formato: Artigo
Idioma:Inglês
Publicado em: Oxford University Press 2015
Assuntos:
Acesso em linha:https://ncbi.nlm.nih.gov/pmc/articles/PMC4479111/
https://ncbi.nlm.nih.gov/pubmed/25868551
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1093/aje/kwu485
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