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The International Journal of Biostatistics

Ed. by Chambaz, Antoine / Hubbard, Alan E. / van der Laan, Mark J.

2 Issues per year

IMPACT FACTOR 2013: 0.948

SCImago Journal Rank (SJR): 1.039
Source Normalized Impact per Paper (SNIP): 0.746

Mathematical Citation Quotient 2013: 0.04

Principal Stratification -- a Goal or a Tool?

Judea Pearl1

1University of California, Los Angeles

Citation Information: The International Journal of Biostatistics. Volume 7, Issue 1, Pages 1–13, ISSN (Online) 1557-4679, DOI: 10.2202/1557-4679.1322, March 2011

Publication History

Published Online:

Principal stratification has recently become a popular tool to address certain causal inference questions, particularly in dealing with post-randomization factors in randomized trials. Here, we analyze the conceptual basis for this framework and invite response to clarify the value of principal stratification in estimating causal effects of interest.

Keywords: causal inference; principal stratification; surrogate endpoints; direct effect; mediation

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