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Different Methods of Balancing Covariates Leading to Different Effect Estimates in the Presence of Effect Modification
A number of covariate-balancing methods, based on the propensity score, are widely used to estimate treatment effects in observational studies. If the treatment effect varies with the propensity score, however, different methods can give very different answers. The authors illustrate this effect by...
Autores principales: | , , , , , , |
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Formato: | Texto |
Lenguaje: | English |
Publicado: |
Oxford University Press
2009
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2656533/ https://www.ncbi.nlm.nih.gov/pubmed/19153216 http://dx.doi.org/10.1093/aje/kwn391 |