Correction: Trials 25, 401 (2023)

https://doi.org/10.1186/s13063-024-08223-5


Following the publication of the original article [1], we were notified that figures 2 and 3 have been swapped. The original article was corrected.

Furthermore, under item 20a, the phrase “To address potential confounders for which the multivariable analysis needs to be adjusted, a Directed Acyclic Graph was designed on https://www.dagitty.net (Fig. 2)” should read “To address potential confounders for which the multivariable analysis needs to be adjusted, a Directed Acyclic Graph was designed on https://www.dagitty.net (Fig. 3)”.

The original article was corrected.