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Validation sampling can reduce bias in healthcare database studies: an illustration using influenza vaccination effectiveness
OBJECTIVE: Estimates of treatment effectiveness in epidemiologic studies using large observational health care databases may be biased due to inaccurate or incomplete information on important confounders. Study methods that collect and incorporate more comprehensive confounder data on a validation c...
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| Main Authors: | , , , , , |
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| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado em: |
2013
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| Assuntos: | |
| Acesso em linha: | https://ncbi.nlm.nih.gov/pmc/articles/PMC3911878/ https://ncbi.nlm.nih.gov/pubmed/23849144 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1016/j.jclinepi.2013.01.015 |
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