In the July 2017 issue of EPIDEMIOLOGY in the supplemental digital content to the article by Oates et al., “Repair of Partly Misspecified Causal Diagrams”, Proposition 3 was incorrect as stated. For the conclusion to hold in case (C2), an additional assumption is needed to ensure that the orientation phase of the PC algorithm is unaffected by expert misjudgment. The assumption, (A3), is the non-existence of triplets (i, j, k) such that (i)
, and (iii)
. All instances of (C2) in the paper satisfied (A3), thus the experimental results were unaffected. The corrected supplemental digital content can be viewed online (http://links.lww.com/EDE/B272). The authors are grateful to Marloes Maathuis and Emilija Perkovic for highlighting the problem with Proposition 3.
Oates CJ, Kasza J, Simpson JA, Forbes ABRepair of Partly Misspecified Causal Diagrams. Epidemiology. 2017;28:548–552.