Corrigendum to: An examination of multivariable Mendelian randomization in the single-sample and two-sample summary data settings

The caption submitted for Figure 1 was the same as the caption for Figure 2, and incorrect.

The correct caption for Figure 1 is shown below.

Figure 1.

Hypothesised relationship between genetic variant G_j, modifiable exposure X and outcome Y in the presence of an unobserved confounder, denoted by U. The line from G_j to X represents instrumental variable assumption IV1. Dashed lines represent potential violations of the instrumental variable assumptions IV2 and IV3.

First published online 10 December 2018, Int J Epidemiol 2019;48:713–27. doi: https://doi.org/10.1093/ije/dyy262