In the Online First article by McIsaac et al., modifications were made to reflect issues of precision missed during the proof process. Frailty scores were adjusted to avoid any false precision, and language was adjusted to properly reflect between-group comparisons (increase was changed to greater).

The online version and PDF of the article have been corrected.

Reference

Reference
McIsaac
DI
,
Aucoin
SD
,
Bryson
GL
,
Hamilton
GM
,
Lalu
MM
:
Complications as a mediator of the perioperative frailty–mortality association: Mediation analysis of a retrospective cohort.
Anesthesiology
.
2021 Feb 2
[Epub ahead of print]