Transcription of Section Editor: Franklin Dexter E STATISTICAL …
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Economics, Education, and Policy Section Editor: Franklin Dexter E STATISTICAL GRAND ROUNDS. Understanding the Mechanism: Mediation analysis in Randomized and Nonrandomized Studies Edward J. Mascha, PhD,* Jarrod E. Dalton, PhD,* Andrea Kurz, MD, and Leif Saager, Dr med . In comparative clinical studies, a common goal is to assess whether an exposure, or inter- vention, affects the outcome of interest. However, just as important is to understand the mechanism(s) for how the intervention affects outcome. For example, if preoperative anemia was shown to increase the risk of postoperative complications by 15%, it would be important to quantify how much of that effect was due to patients receiving intraoperative transfusions.
Mediation Analysis October 2013 Volume 117 Number 4 www.anesthesia-analgesia.org 981 congestive heart failure, were a priori identi!ed and there-fore were not adjusted for in the analysis of the total effect of
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Multivariate analysis, Multiple, And Rod C. Carter, CCP, PSP, ANALYSIS, Attitude-Behavior Relations: A Theoretical Analysis, Principal component analysis, University of Texas, MODES OF TRANSMISSION, Management Preparing and Managing, Management Preparing and Managing Correspondence, Structural Equation Modeling and Path, Structural Equation Modeling and Path Analysis