Analytic Perspective
Identifiability, exchangeability and confounding revisited
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* Corresponding author: Sander Greenland lesdomes@ucla.edu
1 Department of Epidemiology and Department of Statistics, University of California, Los Angeles, CA 90095-1772, USA
2 Departments of Epidemiology and Biostatistics, Harvard School of Public Health, Boston, MA 02115, USA
Epidemiologic Perspectives & Innovations 2009, 6:4 doi:10.1186/1742-5573-6-4
Published: 4 September 2009Abstract
In 1986 the International Journal of Epidemiology published "Identifiability, Exchangeability and Epidemiological Confounding". We review the article from the perspective of a quarter century after it was first drafted and relate it to subsequent developments on confounding, ignorability, and collapsibility.