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Erratum: Bias Formulas for Sensitivity Analysis for Direct and Indirect Effects

doi: 10.1097/EDE.0b013e3181edae08
Errata
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Reference

VanderWeele TJ. Bias formulas for sensitivity analysis for direct and indirect effects. Epidemiology. 2010;21:540–551. View Full Text | PubMed | CrossRef

In Appendix 1 of the paper “Bias formulas for sensitivity analysis for direct and indirect effects,” the formula for the bias of the natural direct effect risk ratio was written as:

and ought to have been written as

where

To obtain the simpler formulas in Appendix 1 for the natural direct and indirect effect risk ratio bias terms:

an additional assumption that vm = 1 for all m is necessary ie, M has no effect on Y when the unmeasured confounder is absent. The more general results are given in the eAppendix of the original paper.

© 2011 Lippincott Williams & Wilkins, Inc.