Preoperative Atelectasis in Bariatric Surgery

This release contains updated analysis incorporating inverse probability weighting for mediation analyses. The rationale for the underlying directed acyclic graph has been revised and documented, leading to changes in the variables used for adjustment. Lock files have been added for this version. This version matches the content of version 2 of the manuscript in medRxiv, as well as the poster presented in the Annual Netherlands Epidemiology Congress WEON 2024.