Due to the COVID-19 pandemic, the annual Cochrane Bias Methods Group meeting will be a virtual meeting. We have planned two meetings to accommodate different time zones. The two meetings will have somewhat different programs, but material from the meetings will be made available at the Bias Methods Group website.

Meeting 1 on Thursday 28 October at 5 pm CEST (check time in your time zone). Join through this link (we recommend you add it to your calendar now): https://syddanskuni.zoom.us/j/67974584258.

This meeting (Meeting 1) will be a themed session on risk of bias in non-randomised studies of interventions. Convenors of the Bias Methods Group will provide an update on the development and revision of ROBINS-I, and Professor of Medical Statistics and Epidemiology Jonathan Sterne will give a talk on bias in observational studies of COVID-19 vaccines.

Meeting 2 on Wednesday 17 November at 9 am CET (check time in your time zone). Join through this link (we recommend you add it to your calendar now): https://syddanskuni.zoom.us/j/68023729309.

At the meeting (Meeting 2), convenors and members of the Bias Methods Group will present findings from recent methodological research. See below on how to submit proposals for talks.

Please join us for updates on important methodological developments and interesting discussions.

Are you involved in a research project that's of interest to the Bias Methods Group?

If so, we would like to invite you to present your work at the annual Bias Methods Group meeting. If you would like to present, please submit a 300-word abstract to Camilla.Hansen3@rsyd.dk by October 17. Please include an abstract title as well as full name and affiliation of the presenter in the submission.

Accepted abstracts will be presented virtually at our annual meeting on Wednesday November 17 from 9-10 am CET (Meeting 2 listed above). We also invite recorded presentations, if the presenter is unavailable at the time of the meeting.

We invite abstracts for two types of presentations: full presentations and lightning talks. If selected for a full presentation, you will be given a timeslot of 15 minutes (10 minutes presentation, 5 minutes Q&A). If selected for a lightning talk, you will be given a timeslot of 5 minutes (3 minutes presentation, 2 minutes Q&A). Please include preferences for presentation type in your abstract submission.

Abstract notifications are expected to be given at the end of October.