Correction to: A proposal for capturing interaction and effect modification using DAGs
John Attia, Elizabeth Holliday, Christopher J. Oldmeadow · International Journal of Epidemiology · 2022
First published online 13 June 2022, International Journal of Epidemiology, https://doi.org/10.1093/ije/dyac126 The sentence “For example, when considering the causal effect corresponding to the arrow from G to D, assuming all known confounders of G and D have been controlled for, the presence of the E × G interaction node initially creates an open back-door path (since we are conditioning on the E x G collider); however, adjusting for G in this model closes the back-door path.” Should have concluded “however, adjusting for E in this model closes the back-door path” Further, the paragraph “We propose that effect modification could be graphically depicted as shown in Figure 3b. Here, inclusion of the E × G node represents an assumption that the causal effect of E on D is modified by G.” should have appeared in the discussion of Figure 3, earlier in the paper. The paper has been corrected.