Cargando…
Causal null hypotheses of sustained treatment strategies: What can be tested with an instrumental variable?
Sometimes instrumental variable methods are used to test whether a causal effect is null rather than to estimate the magnitude of a causal effect. However, when instrumental variable methods are applied to time-varying exposures, as in many Mendelian randomization studies, it is unclear what causal...
Autores principales: | , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Netherlands
2018
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6061140/ https://www.ncbi.nlm.nih.gov/pubmed/29721747 http://dx.doi.org/10.1007/s10654-018-0396-6 |